GM Engine-ECU Immobilizer-Off for Swaps & Orphaned Builds (E98, E80, E82, E84)
LS/LT swap or standalone GM build? We remove the immobilizer requirement from the E98/E80/E82/E84 ECU on the bench so it runs outside the donor vehicle.
Sending several modules? Add them all — one box, one return-shipping charge.
GM E98, E80, E82, E84 engine ECUs — LS/LT and related engines used in swaps, standalone, marine, and orphaned builds
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 via Stripe. 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. Customer pays shipping to us.
Receive in 1-2 Days
Work 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
- Immobilizer requirement removed from your GM ECU
- Checksum-corrected so the ECU runs clean
- ECU that runs outside its original donor vehicle
- Bench-verified before it ships back
- Guidance on what your swap harness still needs
- 24-hour bench turnaround after the module arrives
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
ECU families
Typical use
What we do
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- ✓LS/LT swap where the ECU cranks but won't run (anti-theft)
- ✓Standalone / marine / off-road build needs the immobilizer removed
- ✓Orphaned vehicle with no working anti-theft path
- ✓Donor ECU that will not run outside its original car
Won't fix:
- ✗Emissions edits — catalyst, EVAP, EGR, DPF (we do not offer these)
- ✗Transmission controller work — see the GM TCM services
- ✗Tuning/calibration — this is immobilizer removal, not a tune
- ✗A physically destroyed ECU with unreadable memory
Make a GM ECU run on its own
The GM anti-theft system is designed to stop the engine from running outside its original vehicle — great for theft prevention, a wall for a swap. A bench immobilizer-off removes that requirement so the ECU runs standalone, which is what an LS/LT swap into an older chassis, a marine or off-road build, or an orphaned vehicle needs. It is an anti-theft operation only: proof of ownership is required, and no emissions equipment is touched.
Shipping Instructions
These details are also emailed to you the moment your payment clears.
Ship your GM engine ECU with a note describing the build (swap, standalone, marine, orphaned). Text the VIN or ECU part number first and we confirm coverage. Return shipping is selected and paid at checkout — Standard $24.95, UPS 2-Day $54.95, or UPS overnight $94.95. Ship to PO Box 120241, Arlington TX 76012 (USPS) or 1009 Oakwood Ln # 120241, Arlington TX 76012 (UPS/FedEx). Proof of ownership is required for all immobilizer work.
What to include in your box
- Your GM engine ECU (E98 / E80 / E82 / E84)
- A note describing the build and what the harness is
- VIN or ECU part number, and proof of ownership
- A printed order confirmation
- Your name, return address, and phone number
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
Both shipping labels — to the lab and back to you — are purchased the moment you order. Your prepaid inbound label (already addressed) arrives by email; the return 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.
Will this let my swapped LS/LT run without the donor car's security?
Is this a tune?
Do you touch the emissions systems?
Which GM ECUs are covered?
Do you require proof of ownership?
Related Services
Other bench services for the same brand or use case.
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GM BCM Standalone Clone (2003-2015)
Failed GM BCM taking your lights, locks, and anti-theft with it? We clone a working BCM to a replacement — VIN, mileage, theft system and all coding preserved.
GM Global A Virginize (Used ECM)
Used Global A ECM that SPS refuses to program? We reset it to a virgin, unmarried state so GM SPS / TIS2Web will take it to your VIN.
Where we serve GM ECU IMMO-Off (E98 / E80 / E82 / E84)
Mail-in means nationwide. See your state, metro, or specific vehicle:
Ready to ship?
Pay now, get the shipping address by email, drop it in the mail. Your module is back on your bench within a week.