Honda / Acura Engine ECU (PGM-FI) Immobilizer Clone — Used/Donor Swap
Used Honda or Acura ECU and a green key light that won't go out? We clone your immobilizer-coded PGM-FI ECU onto the donor — no dealer re-flash.
Sending several modules? Add them all — one box, one return-shipping charge.
Immobilizer-equipped Honda and Acura PGM-FI engine ECUs/ECMs, roughly 1998-2007 across the popular models.
How It Works
Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.
Pay & Get Address
Click "Order Now", pay securely online. We email shipping address + instructions within minutes.
Ship Your Module
Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Your prepaid inbound label arrives by email — shipping to us costs you nothing.
Get It Back Fast
Work typically completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.
What You Get
- Your original immobilizer key files cloned onto the donor ECU
- Donor ECM returned plug-and-play — no dealer re-flash
- Existing ignition keys continue to work
- VIN/immobilizer data matched to your vehicle
- No tow and no HDS dealer appointment
- Bench-verified read/write before return shipping
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
Honda
Acura
ECU / ECM families
- Honda/Acura PGM-FI engine control modules
- Immobilizer-coded OEM ECUs (37820-series)
- Part-number-matched donor ECMs
- HDS/immobilizer-keyed units
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- No-start after installing a used/junkyard Honda or Acura ECU
- Blinking immobilizer/key light after an ECU swap
- Immobilizer system fault with a donor ECM that won't run
- Replacing a failed PGM-FI ECU while keeping your keys
- Donor ECU coded to a different car's keys
Won't fix:
- Emissions or readiness-monitor defeat - no cat/EGR/O2 deletes
- Performance tuning, K-Pro/Hondata jailbreaks, or remaps
- Physically failed donor hardware (we clone data, not repair boards)
- Mechanical, sensor, or wiring no-start causes unrelated to the ECU
Shipping Instructions
These details are also emailed to you the moment your payment clears.
Send your original ECU and a part-number-matched donor ECM together to PO Box 120241, Arlington TX 76012 if you ship USPS — or 1009 Oakwood Ln # 120241, Arlington TX 76012 if you ship UPS or FedEx (UPS and FedEx cannot deliver to a PO Box). We clone the immobilizer files, verify and return the donor, typically within 24 hours; return shipping is selected and paid at checkout (Standard $29.95, UPS 2-Day $54.95, or UPS overnight $94.95).
What to include in your box
- Your original Honda/Acura ECU, labeled ORIGINAL
- The donor/used ECM (matching part number, e.g. 37820-...), labeled DONOR
- A note with your VIN and year/model
- Your name, return address, and contact info
- Order number or receipt inside the package
Ship to
Auto Module Lab
If shipping USPS
PO Box 120241
Arlington, TX 76012
If shipping UPS or FedEx
1009 Oakwood Ln # 120241
Arlington, TX 76012
Your prepaid inbound label (already addressed) arrives by email the moment you order; the return label is bought when your module reaches the bench and ships on the speed you chose at checkout.
Need to perform this job remotely?
Get an Auto Module Lab Remote Programming Kit and have our technicians program supported vehicles from your shop — the car stays on your lift and nothing gets posted.
Buy the interface once — program with us anytime. Supported procedures vary by vehicle, module, OEM software and security requirements.
Frequently Asked
Still have a question? Text us — replies in minutes.
Why won't a used Honda/Acura ECU start my car?
Do I need a dealer re-flash after this?
Do the part numbers have to match?
What do I ship you?
Can you remove the immobilizer or tune the ECU?
Related Services
Other bench services for the same brand or use case.
Honda/Acura ECU IMMO Off
Permanently remove immobilizer from Honda + Acura ECUs — bench fix for no-key, swapped-ECU, or damaged HDS scenarios.
Honda/Acura ECM — Programmed to VIN
Dead Honda or Acura ECM? Send nothing — we source the correct one, program it for your VIN with the immobilizer handled, and ship it ready to install.
GPEC2 / 2A / 3 / 4 / 4LM PCM Clone (Mail-In)
Replacing a failed GPEC2 / GPEC2A PCM? Mail in your original + the donor and we clone it — VIN, immo, and config carried over so it plugs in and runs.
Where we serve Honda/Acura ECU Immobilizer Clone
Mail-in means nationwide — we accept modules from all 50 states and DC from our Arlington, Texas lab. See your state, metro, or specific vehicle:
Ready to ship?
$250 flat, typical 24-hour turnaround. Pay now, get the shipping address by email, drop it in the mail. Your module is typically back on your bench within a week.