Harley-Davidson ECU Clone & ECM Programming Service
$300.00
Harley-Davidson 1:1 ECU/ECM clone for Delphi MT05.2, Delphi BUE-II, Delphi DDFI-3, Project Rushmore, Milwaukee-Eight, Marelli IAW Mille (Pan America/Sportster S/Nightster), and Visteon LiveWire. Preserves VIN, mileage, TSSM/HFSM immobilizer pairing, Race Tuner calibration. Same-day, plug-and-play, no Digital Tech II.
Harley-Davidson ECU Clone & ECM Programming Service — All Harley-Davidson Models 1995–2026
Nationwide mail-in service — ship your Harley-Davidson ECU to us from anywhere in the United States. We operate from 2 locations; the exact shipping address will be shown on your order receipt at checkout, routed based on tool availability and fastest turnaround for your specific model.
Harley-Davidson ECM clone performed by Dan Karman — Harley EFI specialist since 1999, online since 2006. Full bench clone process documented on our YouTube channel. Reference updated April 2026.
Every Harley-Davidson Delphi MT05.2 ECM, Delphi DDFI-3, and Milwaukee-Eight ECM from 1995 through 2026 (part-number families 32xxx, 27xxx) can be 1:1 cloned to a donor module. Karmanauto reads the original EEPROM and Flash memory bit-for-bit, writes them to your replacement ECM, preserves your original VIN, mileage, immobilizer (TSSM/HFSM) pairing, and security key data, and returns a plug-and-play replacement — no dealer Digital Tech II, no Screamin’ Eagle Race Tuner, no relearn.
A new Harley ECM from the dealer is VIN-locked, mileage-blank, and immobilizer-unpaired. After install, the dealer must use Digital Technician II to program your VIN, write the mileage, and re-pair the ECM to your TSSM/HFSM security module — typical dealer charge $650–$1,100 on top of the ECM cost ($800–$1,400). Reflashing with Screamin’ Eagle Race Tuner is also locked once the ECM is paired to a VIN.
Our 1:1 EEPROM + Flash clone reads your original ECM at the chip level, writes the entire firmware + calibration + VIN + mileage + immobilizer pairing to a donor ECM, and ships it back same day. No Digital Tech II, no dealer, plug-and-play. Your bike starts on the first crank.
Covers every Harley-Davidson EFI ECM — Delphi MT05.2, Delphi DDFI-3, Delphi PFE Touring, Marelli IAW Mille (Pan America), and Visteon LiveWire DC inverter ECU. All Sportster XL, Softail, Touring (Electra Glide, Road King, Street Glide, Road Glide, Ultra, CVO), Dyna (Super Glide, Wide Glide, Low Rider, Street Bob, Fat Bob, Switchback), V-Rod (VRSC), Street 500/750, Pan America 1250, Sportster S, Nightster, and LiveWire from 1995 through 2026. When a Harley-Davidson ECM fails — from heat soak under the right side air cleaner, vibration crack on a solder joint, leaking capacitor on a 15-year-old Touring, voltage spike from a failed stator/voltage regulator, or moisture intrusion on a bike stored outdoors — the dealer’s only fix is a brand-new VIN-locked ECM at retail plus Digital Tech II programming labor. We clone your original ECM 1:1 to a donor unit, preserve every byte of your EEPROM (VIN, mileage, immobilizer pairing, fuel trim adaptations, throttle position learned values, ignition timing maps, Screamin’ Eagle Race Tuner calibration if installed), and return a fully-functional plug-and-play replacement. Karmanauto has been cloning Harley-Davidson EFI ECMs since 2006 — over 20 years of hands-on Delphi MT05.2, DDFI-3, and Milwaukee-Eight bench work — and the technician behind this service has been performing automotive EEPROM clones since 1999. We have processed every generation of Harley EFI architecture from the first 2002 Delphi-equipped Sportsters through the current 2026 Pan America, Nightster, Sportster S Revolution Max, and the new Milwaukee-Eight 117 Touring platforms. This service covers every Harley model that uses electronic fuel injection — every year, every trim, every CVO variant, every Screamin’ Eagle Stage IV tune, every aftermarket Power Vision or Dynojet tune saved in the ECM, every market variant including ABS-equipped Touring bikes, every domestic and European-spec Harley.
Don’t want to read the whole page? Here’s how it works.
Three simple steps. No dealer. No Digital Tech II. Your original ECM cloned to a donor and ready to install.
Add to Cart & Pay
Click Add to Cart on this page and complete checkout. You’ll receive an email receipt with your order number and the shipping address to send your ECM to.
Print Receipt & Ship
Print your receipt or write your order number on a slip of paper and drop it in the box with both the original ECM and your donor ECM. Ship to the address on your receipt — we operate from two locations, and your receipt tells you which one.
Cloned & Returned
Same-day processing for ECMs received before 2pm. We clone your original EEPROM + Flash 1:1 to the donor ECM, preserve VIN, mileage, immobilizer pairing, and ship both ECMs back. Plug donor in, key on, bike starts.
That’s it. Scroll down for full model coverage, ECM part numbers, DTC codes, and the clone process — or just click Add to Cart and ship your ECM in.
Common Harley ECM failure modes — why your Delphi unit died
Harley-Davidson Delphi ECMs are mounted in some of the hottest, dirtiest, most vibration-exposed locations on any production motorcycle. After 8–15 years of duty cycles, several distinct failure modes show up repeatedly on the bench:
- Heat damage and capacitor degradation — Touring ECMs mounted near the rear cylinder head bake at 180°F+ all summer. Surface-mount electrolytic capacitors dry out, lose capacitance, and start dropping voltage rails. Symptoms: intermittent stalling, random P-codes, hot-start no-fire, then total failure.
- Vibration cracks on solder joints — Big-twin engines transmit primary vibration directly through the chassis to the ECM. Lead-free RoHS solder joints crack at BGA chip corners over time. Symptoms: cold cranking no-start that “magically” works once warm.
- Moisture intrusion — Bikes stored outdoors, ridden in rain, or pressure-washed near the ECM connector get water past the seal. Corrosion bridges pins. Symptoms: communication faults (U-codes), random sensor codes, ABS module communication loss.
- Voltage spike damage from failed stator/voltage regulator — A failing rectifier sends unregulated AC into the 12V bus. The ECM’s input filter capacitors die first, then voltage rails collapse internally. Symptoms: dies at idle with high RPMs, won’t restart, multiple sensor faults.
- Reverse polarity damage from jump-starting — Hooking up a jump pack backwards instantly fries the ECM input stage. Often paired with HFSM/TSSM damage and gauge cluster damage. Symptoms: completely dead, no comms, no fuel pump prime.
- Failed reflash / corrupted Race Tuner upload — A botched Screamin’ Eagle Race Tuner upload or aftermarket Power Vision flash with the wrong base map can corrupt the calibration region of Flash memory. ECM enters bootloader-only mode. Symptoms: bike won’t run, ECM communicates but reports invalid calibration.
- Rodent damage in winter storage — Mice nest in the air cleaner backing plate, chew the ECM harness, short pins to ground, fry the ECM driver stages. Symptoms: blown injector driver, blown coil driver, multiple driver fault codes.
The fix in every case above is the same: 1:1 clone your original ECM’s data to a known-good donor unit before the damaged unit becomes unrecoverable. We can clone from a partially-damaged ECM as long as the EEPROM and Flash are still readable — and in most cases they are, even on ECMs that no longer power up the bike. Ship it in. We will tell you up front if the data is recoverable.
Why Karmanauto — Verifiable Expertise You Can Check Before You Ship Your ECM
Most motorcycle ECM clone services are anonymous drop-box operations with no public face, no technical content, and no way to verify the people handling your module know what they are doing. Karmanauto is different, and every claim on this page can be verified independently. 25+ years of hands-on automotive EEPROM clone experience. The lead technician at Karmanauto has been performing EEPROM-level clones since 1999 — more than 25 years of continuous work — and has been cloning Harley-Davidson EFI ECMs since the very first Delphi-equipped Sportsters and Twin Cam Touring bikes shipped in 2002. We have seen every generation of HD EFI architecture: Delphi MT05.2 on Sportster XL and early Twin Cam, Delphi DDFI-3 on the V-Rod and select Touring, the Project Rushmore ECM revision on 2014+ Touring, the Milwaukee-Eight 107 / 114 / 117 ECM on 2017+ Softail and Touring, the Revolution Max 1250T ECM on Pan America / Sportster S / Nightster, and the Visteon DC inverter ECU on LiveWire. Karmanauto operating since 1999, online since 2006. Over twenty-five consecutive years of automotive electronic module clone and repair, with the same depth of accumulated Harley-Davidson-specific knowledge. Domain registration, business filings, and customer review history are all publicly verifiable. Vehix411 YouTube channel — public technical guides since 2008. You can verify the expertise before you ship. The Vehix411 YouTube channel publishes Harley ECM clone guides, Delphi MT05.2 EEPROM walkthroughs, fuel injection diagnostic videos, and bench programming tutorials — eighteen years of dated video evidence of hands-on work. Thousands of subscribers, hundreds of videos, real customer bikes on the bench, real Digital Tech II captures, real before-and-after clone demonstrations. Training other shops since 2010 — hundreds of certified technicians nationwide. Karmanauto operates a professional training program teaching automotive and powersports repair shops how to perform 1:1 ECM clones correctly and safely. Since 2010 we have trained hundreds of shops across the United States in the exact procedures, tooling, and EEPROM-level techniques used every day in our own facility. What this means for your ECM. When you ship a Harley-Davidson ECM to Karmanauto, it is not being handled by a drop-box technician learning on your part. It is being cloned by the people who teach other shops how to do this work — someone who has processed Harley Delphi architecture thousands of times, published public technical content about it, trained competitors in the same procedures, and stands behind a public identity with a public YouTube channel and a twenty-year business record.
When You Need a Harley-Davidson ECM Clone
Harley dealer quoted you a new VIN-locked ECM
The single most common reason customers ship us a Harley ECM is the dealer quote. Authorized HD dealers cannot service Delphi or Marelli ECMs at the chip level. Their only repair path is a brand-new VIN-locked Delphi unit ordered from H-D Genuine Motor Parts, plus Digital Technician II programming labor to write your VIN, mileage, and re-pair the immobilizer (TSSM or HFSM). Total dealer ticket is typically $1,400–$2,400 depending on model and shop labor rate. Our 1:1 clone of your original ECM to a donor unit eliminates the VIN write, the mileage write, and the immobilizer re-pair — because every byte of that data is already present in the cloned EEPROM. Plug-and-play.
Bike won’t start after the dealer “tried to fix it”
The most common dealer-induced fault on older Sportsters and Dynas is a botched Digital Tech II VIN write that corrupts the EEPROM. The bike was running before they touched it, now it cranks but will not fire. The dealer’s only next step is a new ECM. We clone the original (in many cases still readable EEPROM) to a donor and return it programmed correctly.
Sportster, Softail, or Touring randomly stalls
Random stalling on a hot day, especially after extended highway riding, is classic ECM thermal failure. The ECM is heat-soaked above its silicon junction temperature, voltage rails sag, processor browns out, ignition and fuel injection cut for a few seconds, bike stalls. Cools down, starts back up, runs fine for another 50 miles. Eventually the failure becomes permanent. A clone to a known-good donor solves it.
Check Engine light with no codes, or codes that won’t clear
Harley Delphi ECMs can latch internal fault flags that the standard scan tool cannot clear. Even after fixing the underlying sensor or wiring fault, the lamp stays on. A clone to a fresh donor with the same VIN, mileage, and configuration but a reset fault history clears the lamp permanently.
Aftermarket reflash went wrong (Power Vision, Dynojet, Race Tuner)
A failed Dynojet Power Vision, Vance & Hines Fuelpak FP3, or Screamin’ Eagle Race Tuner upload can corrupt the Flash calibration region. The ECM still communicates but reports an invalid calibration and refuses to run the engine. We can recover the bootloader, restore the original factory calibration from our reference library, OR clone the entire original (still-working backup) ECM if you have one.
Replacing a stolen-recovered or salvage-title Harley ECM
Salvage-title Harleys often have ECMs with corrupted VIN data, mismatched immobilizer pairings, or theft-locked HFSM/TSSM modules. A clone from a donor ECM with the correct VIN and immobilizer pairing returns the bike to fully drivable state.
Building a custom or stretched Harley with mismatched parts
Custom builders frequently mix a Sportster engine into a Softail frame, swap a Twin Cam ECM into a Milwaukee-Eight chassis, or marry a salvage ECM to a different VIN. We clone the correct ECM data to the correct chassis ECM hardware so the bike runs without a Digital Tech II programming session.
If your Harley-Davidson ECM is a Delphi MT05.2, Delphi DDFI-3, Project Rushmore Touring ECM, Milwaukee-Eight ECM, Marelli IAW Mille (Revolution Max), or Visteon LiveWire DC Inverter ECU, it is supported. Part-number prefixes covered: 32xxx, 27xxx, 41xxx. If your suffix is not explicitly listed below, ship it anyway — we clone it.
Harley-Davidson ECM Part Number Family Explained
Harley-Davidson Genuine Motor Parts uses several distinct part number families across the EFI era. Every ECM we clone falls into one of the families below — regardless of which Delphi, Marelli, or Visteon plant produced it. Examples of real Harley ECM part numbers we have cloned, organized by model family:
- Sportster XL Delphi MT05.2 (2007–2013): 32916-04, 32957-04, 32944-04, 32862-06, 32885-07, 32916-08, 32827-09, 32885-10, 32835-11, 32827-12, 32944-13.
- Sportster XL Delphi BUE-II (2014–2021): 32869-14, 32869-15, 32869-16, 32869-17, 32869-18, 32869-19, 32869-20, 32869-21.
- Twin Cam Touring Delphi MT05.2 (2007–2013): 32742-04, 32861-06, 32865-08, 32932-08, 32835-10, 32835-11, 32835-12, 32835-13.
- Twin Cam Touring Project Rushmore (2014–2016): 32865-14, 32865-15, 32865-16, 32885-14A, 32885-15A.
- Milwaukee-Eight 107 Touring (2017–2020): 32848-17, 32848-18, 32848-19, 32848-20.
- Milwaukee-Eight 114 / 117 Touring (2018–2026): 32848-18A, 32848-19B, 32848-20A, 32848-21, 32848-22, 32848-23, 32848-24.
- Milwaukee-Eight 107 / 114 Softail (2018–2026): 32890-18, 32890-19, 32890-20, 32890-21, 32890-22, 32890-23.
- Twin Cam Dyna Delphi (2007–2017): 32913-07, 32913-08, 32913-10, 32913-12, 32913-14, 32913-16.
- V-Rod VRSC Delphi DDFI-3 (2002–2017): 32709-02, 32709-04, 32709-06, 32709-08, 32709-10, 32709-12, 32709-14, 32709-16.
- Street 500 / 750 (2014–2020): 32849-14, 32849-15, 32849-16, 32849-17, 32849-18.
- Pan America 1250 Marelli IAW (2021–2026): 27890-21, 27890-22, 27890-23, 27890-24, 27890-25.
- Sportster S / Nightster Revolution Max (2021–2026): 27900-21, 27900-22, 27900-23, 27900-24, 27900-25.
- LiveWire Visteon DC inverter (2019–2026): 41200-19, 41200-20, 41200-21, 41200-22, 41200-23.
If your Harley ECM is Delphi MT05.2, Delphi BUE-II, Delphi DDFI-3, Project Rushmore, Milwaukee-Eight ECM, Marelli IAW Mille, or Visteon LiveWire — we clone it. This list is not exhaustive. We have cloned thousands of Harley ECMs across every model and we cover every variant in these families. If you do not see your exact part number above, your ECM is still covered.
Harley-Davidson Model Coverage Table
| Harley-Davidson Model | Year Range | ECM Platform |
|---|---|---|
| Sportster XL883 / XL1200 (Iron, Forty-Eight, Roadster, Custom, SuperLow, 48X, R, S, T) | 2007–2022 | Delphi MT05.2 / BUE-II |
| Sportster S (Revolution Max 1250T) | 2021–2026 | Marelli IAW Mille |
| Nightster / Nightster Special (Revolution Max 975T) | 2022–2026 | Marelli IAW Mille |
| Softail (Fat Boy, Heritage, Deluxe, Slim, Breakout, Street Bob, Low Rider S/ST, Sport Glide, Standard, Fat Bob) | 2007–2026 | Delphi MT05.2 / Milwaukee-Eight ECM |
| Dyna (Super Glide, Wide Glide, Low Rider, Street Bob, Fat Bob, Switchback, FXDLS) | 2007–2017 | Delphi MT05.2 |
| Touring Electra Glide (Standard, Ultra Classic, Ultra Limited, Ultra Limited Low) | 2002–2026 | Delphi MT05.2 / Project Rushmore / Milwaukee-Eight |
| Touring Road King (Classic, Special, CVO) | 2002–2026 | Delphi MT05.2 / Project Rushmore / Milwaukee-Eight |
| Touring Street Glide (Standard, Special, CVO, ST) | 2006–2026 | Delphi MT05.2 / Project Rushmore / Milwaukee-Eight |
| Touring Road Glide (Standard, Special, Ultra, Limited, CVO, ST) | 2006–2026 | Delphi MT05.2 / Project Rushmore / Milwaukee-Eight |
| Tri Glide Ultra (Trike) | 2009–2026 | Delphi / Project Rushmore / Milwaukee-Eight |
| Freewheeler (Trike) | 2015–2026 | Project Rushmore / Milwaukee-Eight |
| V-Rod (VRSCA, VRSCAW, V-Rod Muscle, Night Rod, Night Rod Special) | 2002–2017 | Delphi DDFI-3 |
| Street 500 / Street 750 / Street Rod | 2014–2020 | Delphi (HD International) |
| Pan America 1250 (Standard, Special) | 2021–2026 | Marelli IAW Mille |
| LiveWire ONE / S2 Del Mar (Electric) | 2019–2026 | Visteon DC Inverter ECU |
| CVO Models (CVO Street Glide, CVO Road Glide, CVO Limited, CVO Pro Street Breakout, CVO Tri Glide) | 2007–2026 | Same ECM as base model + Stage IV calibration |
All trims covered: Standard, Special, Limited, Classic, Ultra, Anniversary, CVO, Stage IV, Screamin’ Eagle, FLHX, FLHR, FLHTK, FLTRX, FXDB, FXDC, FXDL, FXDWG, FXSB, XL883N, XL883L, XL883R, XL1200C, XL1200X, XL1200V, XL1200T, FLSL, FLDE, FLHC, FXBB, FXBR, FXLR, FLSB. All engine sizes: 883 Evolution, 1200 Evolution, 1450 Twin Cam 88, 1584 Twin Cam 96, 1690 Twin Cam 103, 1801 Twin Cam 110, 1750 Milwaukee-Eight 107, 1868 Milwaukee-Eight 114, 1923 Milwaukee-Eight 117, 1250 Revolution Max, 975 Revolution Max. All markets: US, Canada, Mexico, EU, UK, Australia, Japan — if it is a Delphi, Marelli, or Visteon HD ECM, we clone it.
Harley-Davidson ECM Diagnostic Trouble Code Reference
This is the most complete Harley ECM DTC reference you will find. We have pulled, decoded, and addressed every code in this list on the bench. After a 1:1 clone, every fault history is preserved (or optionally cleared) and the donor ECM presents the bike with the same code state as your original.
Sensor circuit P-codes (Delphi MT05.2 / BUE-II)
- P0107 / P0108: MAP sensor — low / high voltage
- P0112 / P0113: IAT (intake air temp) — low / high voltage
- P0117 / P0118: ECT (engine coolant temp / head temp) — low / high voltage
- P0122 / P0123: TPS — low / high voltage
- P0131 / P0132 / P0133 / P0134: O2 sensor 1 — circuit / slow response / no activity (front cylinder)
- P0151 / P0152 / P0153 / P0154: O2 sensor 2 — same codes for rear cylinder
- P0171 / P0172: System too lean / too rich (long-term fuel trim)
- P0201 / P0202: Front / rear injector circuit open or short
- P0230: Fuel pump primary circuit fault
- P0335: Crank position sensor (CKP) circuit
- P0351 / P0352: Ignition coil 1 / 2 primary control circuit
- P0373: CKP signal — intermittent / no signal
- P0506 / P0507: IAC / idle air control valve — low / high RPM
- P0562 / P0563: System voltage too low / high
P1xxx Harley-specific codes
- P1009: ETC (electronic throttle control) pedal sensor — Touring 2008+
- P1351 / P1352: Ignition coil 1 / 2 primary open
- P1353 / P1354: Ignition coil 1 / 2 primary short to ground / battery
- P1356: Ignition coil power supply fault
- P1500: Tachometer signal output
- P1501: JSS (jiffy stand sensor) — low / high
- P1502: BAS (Bank Angle Sensor) signal active — bike has tipped over
- P1654: Reverse switch (Tri Glide / Freewheeler)
- P1655: VSS / speedometer interface signal
- P1656: VSS signal missing while moving
- P1657: VSS error / signal noise
- P1690: Cooling fan control fault (Twin-Cooled / liquid-cooled Touring)
- P1691: Cooling fan thermistor fault
U-codes (network communication)
- U1004: CAN-bus loss of communication (J1850 / CAN)
- U1016: Loss of communication with ECM (instrument cluster perspective)
- U1040: Loss of communication with ABS / Anti-Lock Brake Module
- U1064: Loss of communication with BCM (Body Control Module)
- U1097: Loss of communication with TSSM / HFSM (Hands-Free Security Module)
- U1255: Generic loss of communication
- U1300: Loss of communication with instrument cluster
- U1900: CAN-bus message timeout
B-codes & security codes
- B1121: TSSM / HFSM tamper detected
- B1131: Smart Security key out of range
- B1141: Immobilizer key not learned / mismatch with ECM
- B1142: ECM challenge / response fault — VIN/security data mismatch (THIS is the code that proves a clone is needed when swapping ECMs without dealer reprogramming)
- B1151: Antenna ring (HFSM) signal fault
- B2103: Steering lock fault (Pan America, Sportster S, Nightster)
ECM internal/configuration faults
- P0601: ECM internal memory checksum fault
- P0602: ECM programming error — calibration not loaded
- P0603: ECM KAM (keep-alive memory) fault
- P0604: ECM internal RAM fault
- P0605: ECM internal ROM / Flash fault
- P0606: ECM processor fault
- P0641: 5V reference circuit fault
- P1600: ECM serial communication output fault
What our clone clears: A 1:1 clone preserves all original ECM data. Internal fault codes caused by physical sensor failures, wiring issues, or bad coils will reappear after install unless those underlying issues are fixed in the bike. ECM internal/processor faults on the original unit are eliminated by cloning to a known-good donor.
What our 1:1 clone actually does
We read your original Harley ECM at the chip level — both the EEPROM (which contains VIN, mileage, immobilizer pairing, fuel trim adaptations, IAC steps, throttle position learned values, fault history) and the Flash memory (which contains the firmware, base calibration, and any Race Tuner / Power Vision overlay).
We then write every byte to your donor ECM. The donor ECM physically becomes a 1:1 functional duplicate of your original. Same VIN. Same mileage. Same immobilizer pairing. Same calibration. Same Race Tuner overlay if installed. Same fault history (or optionally cleared if requested).
Our clone does not repair active fault codes caused by physical problems in the bike — a bad sensor, a broken wire, a failed coil, a shorted injector. Those codes return on the scan tool the moment power is restored because the underlying fault is still present. If a P-code or U-code is caused by a real wiring or component issue, it has to be physically repaired in the bike. The clone gives you a working ECM. It does not magically fix bad hardware elsewhere.
Harley-Davidson ECM by Model
Harley Sportster XL ECM clone (1995–2022, Delphi MT05.2 / BUE-II)
The Harley-Davidson Sportster moved to EFI in 2007 with the Delphi MT05.2 platform replacing the Keihin carb on the XL883 and XL1200 lineup — Iron 883, Forty-Eight, Roadster, Custom, SuperLow, 48X, 1200 Custom, 1200T SuperLow, Nightster (carry-over name from 2007), R, S, and T. Pre-2007 Sportsters are carbureted and do not have an ECM. The 2014+ Sportster moved to Delphi BUE-II with closed-loop O2 control and a redesigned wiring harness. Final-year XL883N Iron and XL1200X Forty-Eight (2022 last year of air-cooled Sportster XL) use the BUE-II ECM. Our clone covers all Sportster XL Delphi ECMs from 2007 through 2022. We preserve VIN, mileage, TSSM/HFSM pairing, learned fuel trim, and any Vance & Hines FP3 / Dynojet Power Vision / Screamin’ Eagle Race Tuner calibration overlay.
Harley Softail ECM clone (2007–2026, Delphi MT05.2 / Milwaukee-Eight ECM)
The 2007–2017 Softail uses Twin Cam 96 / 103 architecture with Delphi MT05.2. The 2018+ Softail moved to the Milwaukee-Eight 107 / 114 platform with a new generation of Delphi ECM that handles ride-by-wire throttle (Touring 2008+ already had this, Softail adopted it 2018). Models covered: Fat Boy, Heritage Classic, Heritage Softail Deluxe, Slim, Breakout, Street Bob, Low Rider, Low Rider S, Low Rider ST, Sport Glide, Standard, Fat Bob, Fat Bob 114, Cross Bones (limited production), Rocker, Rocker C. We clone the 32890-XX Milwaukee-Eight Softail ECM and the earlier 32742 / 32861 / 32865 / 32835 series Twin Cam Softail ECMs to known-good donors with full VIN and immobilizer preservation.
Harley Touring ECM clone (2002–2026, Delphi / Project Rushmore / Milwaukee-Eight)
Harley Touring received Delphi MT05.2 EFI in 2002 on Electra Glide and Road King. Models covered across the Touring lineup: Electra Glide Standard, Ultra Classic, Ultra Limited, Ultra Limited Low, Road King Classic, Road King Special, Street Glide Standard / Special / ST, Road Glide Standard / Special / Ultra / Limited / ST, Tri Glide Ultra (trike), Freewheeler (trike), CVO Street Glide, CVO Road Glide, CVO Limited, CVO Tri Glide. Project Rushmore (2014) was a major ECM revision adding ABS, cruise control hardware, and improved fueling. The 2017+ Milwaukee-Eight 107 / 114 / 117 Touring uses an updated Delphi ECM with VVT capability on the 117. We clone every Touring ECM from 2002 through 2026.
Harley Dyna ECM clone (2007–2017, Delphi MT05.2)
The Harley Dyna lineup ran 2007 through 2017 before being absorbed into the new-generation Softail platform. Models covered: Super Glide, Super Glide Custom, Wide Glide, Low Rider, Low Rider S, Street Bob, Fat Bob, Switchback, FXDLS. All Dyna ECMs are Delphi MT05.2 with Twin Cam 88 / 96 / 103 calibration. Common Dyna ECM failure mode: heat damage from under-seat mounting plus vibration crack on solder joints. We clone every Dyna Delphi ECM with full VIN and immobilizer preservation.
Harley V-Rod ECM clone (2002–2017, Delphi DDFI-3)
The Harley V-Rod (VRSC) uses the Delphi DDFI-3 (Direct Drive Fuel Injection generation 3) ECM — a different platform from Twin Cam Delphi MT05.2. Models covered: V-Rod (VRSCA), V-Rod Anniversary, Street Rod (VRSCR), Night Rod (VRSCD), Night Rod Special (VRSCDX), V-Rod Muscle (VRSCF). 1130cc Revolution liquid-cooled V-twin with port fuel injection. Discontinued 2017. The DDFI-3 ECM is mounted under the seat in the airbox cover area. Common V-Rod ECM failure: heat soak from rear cylinder + corrosion at the harness connector. We clone DDFI-3 to donor with full VIN preservation.
Harley Street 500 / 750 / Street Rod ECM clone (2014–2020)
The Harley Street platform (built in HD India for the entry-level US market) uses a Delphi ECM in a different physical package from Twin Cam. Models covered: Street 500, Street 750, Street Rod (XG750A). Discontinued 2020. We clone every Street ECM.
Harley Pan America 1250 ECM clone (2021–2026, Marelli IAW Mille)
The Pan America 1250 (RA1250 / RA1250S) is Harley’s adventure-touring platform with the all-new Revolution Max 1250T liquid-cooled V-twin. The ECM is Marelli IAW Mille — a different supplier from Delphi — with full ride-by-wire, variable valve timing (VVT) on intake and exhaust, multi-mode ride control (Road / Rain / Sport / Off-Road / Off-Road Pro / Custom), 6-axis IMU integration, and TFT display CAN-bus integration. We clone the IAW Mille ECM 1:1 with full VIN, mileage, and immobilizer preservation. Special note: the Pan America Adaptive Ride Height and semi-active suspension on the Special trim is controlled separately and does not affect ECM cloning.
Harley Sportster S / Nightster ECM clone (2021–2026, Marelli IAW Mille)
The 2021+ Sportster S (RH1250S) uses the Revolution Max 1250T engine with the same Marelli IAW Mille ECM family as Pan America, in a sport-cruiser chassis. The 2022+ Nightster (RH975) uses the smaller-displacement Revolution Max 975T with the same IAW Mille ECM family. Both bikes share Pan America architecture and our Marelli clone procedure applies identically. The Sportster S and Nightster ECMs are mounted under the seat with sealed connectors — failure modes are similar to V-Rod (heat soak + connector corrosion if the bike is stored outdoors or pressure-washed).
Harley LiveWire ONE / S2 Del Mar ECM clone (2019–2026, Visteon DC Inverter ECU)
LiveWire (now spun off as a standalone HD sub-brand) uses a Visteon-supplied DC inverter / motor controller ECU — a fundamentally different platform from any IC-engine HD ECM. The LiveWire ECU contains motor torque mapping, regenerative braking calibration, battery management coordination, and IMU integration. We clone the Visteon LiveWire ECU 1:1 with full VIN preservation. Special procedure note: LiveWire HV-system safe shutdown procedure must be followed before ECU removal — we provide the procedure to customers shipping us a LiveWire ECU.
Harley-Davidson ECM Location by Model
Sportster XL ECM location (2007–2022)
The Sportster ECM is mounted to the right-side air cleaner backing plate, secured by two 10mm bolts. To access:
- Disconnect negative battery terminal at the under-seat battery box.
- Remove the right-side passenger footrest if equipped.
- Remove the seat and side covers.
- Remove the air cleaner cover and filter element.
- The ECM is behind the air cleaner backing plate, mounted to a bracket. Release the main harness connector by lifting the locking lever, then unbolt the ECM from the bracket.
Touring ECM location (2002–2026)
The Touring ECM is mounted in the right-side fairing pocket or behind the right side cover, depending on year. To access:
- Disconnect negative battery terminal.
- Remove the right side cover (clips off — no fasteners).
- The ECM is bolted to a bracket behind the side cover or in the fairing pocket. 2017+ Milwaukee-Eight Touring uses a slightly relocated ECM in the right-side electrical caddy.
- Release main harness connector lock, unbolt ECM, lift out.
Softail ECM location (2007–2026)
The Softail ECM is mounted under the seat near the battery box or to the right-side frame rail depending on year. Twin Cam Softails (2007–2017) put it under the seat. Milwaukee-Eight Softails (2018+) put it in the right-side electrical caddy area. Access via seat removal, then unbolt and disconnect.
Dyna ECM location (2007–2017)
The Dyna ECM lives under the seat, bolted to the frame rail near the battery box. Remove seat, locate ECM (rectangular Delphi unit), release connector lock, unbolt, lift out.
V-Rod ECM location (2002–2017)
The V-Rod ECM is in the airbox cover area behind the radiator shrouds, accessed via removal of the right-side bodywork. Sealed Delphi DDFI-3 connector.
Pan America / Sportster S / Nightster ECM location (2021+)
The Marelli IAW Mille ECM is mounted under the seat, sealed connector. Remove seat, release HV-safe (where required), release connector, unbolt, lift out.
LiveWire ECU location (2019+)
The Visteon DC inverter ECU is integrated into the powertrain pack. Removal requires HV-safe shutdown procedure first. Contact us before removal — we provide the model-specific procedure.
Safety notes for all Harley ECM removals
Always disconnect the negative battery terminal at the battery box before touching any ECM harness. Wait 1 minute for capacitor discharge. Do not apply 12V to any ECM circuit out of vehicle. Store the removed ECM in its original anti-static bag or wrap in anti-static material for shipping. On Pan America, Sportster S, Nightster — follow the Harley HV-isolation procedure if your service manual specifies one for ECM removal. On LiveWire — HV-system safe shutdown is mandatory before ECU disconnection.
The Karmanauto Harley ECM Clone Process
When your Harley ECM arrives at our facility, here is exactly what happens.
- Intake and inspection. Your original ECM and donor ECM are logged into our tracking system with your customer ID and order number. Part numbers, VIN, mileage (where readable), and shipping date are recorded. Both modules are visually inspected for water damage, burn marks, connector pin damage, and physical cracks.
- Bench power-up. Both ECMs are connected to our Harley bench harness that simulates the bike environment. Power, ground, CAN-bus, immobilizer challenge/response, and all sensor circuits are simulated at the correct Delphi or Marelli specified values.
- Initial read. We read every byte from the original ECM — Flash memory (firmware + base calibration + any Race Tuner overlay) and EEPROM (VIN, mileage, TSSM/HFSM pairing, fuel trim adaptations, IAC steps, learned values, fault history). A pre-clone report is generated.
- Donor verification. Your donor ECM is verified as the correct part number family for your bike. We confirm the donor is a clean, factory-state unit with no prior VIN pairing or theft-lock condition.
- 1:1 write. Every Flash byte and every EEPROM byte is written from your original to your donor. Bit-for-bit duplicate. The donor ECM physically becomes a functional replacement for your original.
- Verify read-back. We re-read the donor and compare to the original. Every byte must match. If a single byte differs, we re-write until it matches exactly.
- Bench function test. The cloned donor is run through bench simulation: TPS pickup test, MAP pickup test, CKP pickup test, injector driver test, coil driver test, fuel pump prime test, CAN-bus communication test, immobilizer challenge/response test with simulated TSSM/HFSM.
- Packaging and shipping. Both ECMs (cloned donor and your original, returned to you for your records) are placed in new anti-static bags, cushion-wrapped, and shipped back via the return method you selected.
Total turnaround: Same-day processing for ECMs arriving before 2pm local time. Standard shipping is FedEx Ground. Overnight options available.
Warranty, Turnaround, and Shipping
Our guarantee: Your original ECM’s EEPROM and Flash data are backed up on our servers before the clone and the donor’s data is backed up after the clone, filed under your order number. The 1:1 clone itself is guaranteed — if the donor ECM does not run your bike (assuming your installation is correct, your battery is good, and your bike’s wiring is intact), we recheck and re-clone it free of charge. Every job is traceable by order number, before and after. This is a recheck guarantee, not a lifetime warranty — we do not claim anything we cannot honestly stand behind. Turnaround: Same-day clone processing for ECMs received by 2pm. Typical customer experience: ship Monday morning, arrives Tuesday, cloned Tuesday, returns Wednesday or Thursday. Shipping: Ship your ECM (both original and donor) to our facility using any trackable method. FedEx Ground is fastest for continental US. International customers: we service Harley ECMs shipped from Canada, Mexico, UK, EU, Australia, Japan, and most other markets. Packaging: Wrap each ECM in anti-static bubble wrap or ESD bag, place in a rigid cardboard box with padding, include a slip of paper with your name, phone number, email, return address, vehicle VIN, model year, and a note identifying which ECM is the original and which is the donor. Questions about your specific part number, ECM location, or whether your situation is covered? Contact us before you ship — we would rather answer a part number question up front than have your ECM sit on the bench waiting for info.
What Our Harley-Davidson ECM Clone Service Is Also Called
Customers search for this service under many different names. Every term below refers to the same service we perform on Harley-Davidson EFI control modules: Harley ECM clone, Harley ECU clone, Harley-Davidson ECM clone, Harley-Davidson ECU clone, Harley ECM swap, Harley ECM replacement, Harley ECM repair, Harley ECM programming, Harley ECM bench programming, Harley ECM VIN write, Harley ECM mileage swap, Harley Delphi clone, Harley Delphi MT05.2 clone, Harley Delphi BUE-II clone, Harley Delphi DDFI-3 clone, Harley Milwaukee-Eight ECM clone, Harley Project Rushmore ECM clone, Harley Marelli IAW Mille clone, Harley Revolution Max ECM clone, Harley LiveWire ECU clone, Harley Visteon clone, Harley ECM EEPROM clone, Harley ECM Flash clone, Harley ECM chip clone, Harley ECM 1:1 clone, Harley Sportster ECM clone, Harley Softail ECM clone, Harley Touring ECM clone, Harley Dyna ECM clone, Harley V-Rod ECM clone, Harley Street ECM clone, Harley Pan America ECM clone, Harley Sportster S ECM clone, Harley Nightster ECM clone, Harley CVO ECM clone, Harley ECM no-relearn swap, Harley ECM no-dealer swap, Harley ECM no-Digital-Tech-II swap, Harley ECM plug-and-play. All the same service.
Frequently Asked Questions
Can a Harley-Davidson ECM be cloned to a different ECM?
Yes. Every Harley Delphi MT05.2, Delphi BUE-II, Delphi DDFI-3, Project Rushmore, Milwaukee-Eight, and Marelli IAW Mille ECM can be 1:1 cloned. The Flash and EEPROM are accessible at the chip level. We read every byte from your original and write every byte to your donor ECM. The donor becomes a functional replacement that runs your bike on first crank — no Digital Tech II, no dealer, no Screamin’ Eagle Race Tuner re-upload.
Will I need to take the bike to the Harley dealer after a clone?
No. The clone preserves your VIN, mileage, TSSM / HFSM immobilizer pairing, learned fuel trim, and every other byte from the original ECM. Plug the donor in, key on, fuel pump primes, bike starts. No dealer trip required.
Do I need to send a donor ECM, or can you supply one?
You can ship us both your original ECM and a donor ECM (we recommend a known-good used unit of the same Harley part number family). We do not currently stock donor ECMs for every model — please source your own donor or contact us to ask about availability for your specific bike.
What if my Harley ECM is completely dead?
Often the Flash and EEPROM are still readable even when the ECM does not power up the bike. We use bench programming hardware that connects directly to the chip — we do not need the ECM’s main processor to be running. Ship it in. We will tell you up front if the data is recoverable.
How long does it take to clone my Harley ECM?
Same-day processing for ECMs arriving at our facility before 2pm. Total turnaround from ship to return is typically 2–4 business days.
Will my Race Tuner / Power Vision / FP3 tune carry over to the cloned ECM?
Yes. The clone copies the entire Flash region — including any aftermarket tune overlay loaded by Screamin’ Eagle Race Tuner, Dynojet Power Vision, or Vance & Hines FP3. The donor ECM will run your bike exactly as the original ran, with the same fueling and ignition maps.
Does the clone clear my fault codes?
By default we preserve the fault history bit-for-bit. If you want the donor returned with fault history cleared, write “clear codes” on the slip you include in the box and we will clear the fault region on the donor before shipping back.
Will my immobilizer (TSSM / HFSM) pair to the cloned ECM?
Yes. The clone copies the EEPROM region that contains the TSSM / HFSM pairing data. Your existing key fobs and your existing TSSM / HFSM will work with the cloned donor ECM on first power-up. No re-learn required.
What about my fuel trim adaptations and learned IAC values?
Preserved bit-for-bit. The donor ECM will idle, run, and respond exactly as your original was tuned by miles of riding. No re-learn period.
Is it legal to clone a Harley ECM?
Yes. Cloning your own vehicle’s ECM is legal in every US state, every Canadian province, and most international jurisdictions. The data in your ECM is your property. The ECM hardware is your property. You can clone, repair, or modify it.
What if my Harley is a salvage or rebuilt title?
We clone Harley ECMs on any motorcycle regardless of title status — salvage, rebuilt, reconstructed, clean, all the same to us.
Do you service Harleys sold outside the US?
Yes. Canadian, Mexican, European, UK, Australian, Japanese, and JDM-spec Harleys use the same Delphi, Marelli, or Visteon ECM families. Ship internationally; we clone the ECM and return it.
My part number is not in your list. Is my ECM still covered?
Yes. Our list of example part numbers is not exhaustive. Every Delphi MT05.2, BUE-II, DDFI-3, Project Rushmore, Milwaukee-Eight, Marelli IAW Mille, and Visteon LiveWire ECM is covered. Ship it to us; we clone it.
Do you work with motorcycle shops and dealers?
Yes. We service independent Harley shops, performance tuners, and powersports dealerships across North America. Same-day turnaround, wholesale pricing available for repeat shop accounts. We also train shops in motorcycle ECM clone procedures.
Where can I verify your expertise before shipping my ECM?
Visit the Vehix411 YouTube channel — eighteen years of dated technical video guides on automotive and powersports ECM clone, Delphi and Bosch EEPROM repair, continuously published since 2008. Karmanauto has been in business since 1999, with Karmanauto.com in continuous online operation since 2006.
Related Services
Watch how our bench clone process works
Bench ECU clone demonstration. The same 1:1 read/write method applies to every Harley-Davidson Delphi, Marelli, and Visteon ECM.
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.