DIY GPEC2 / GPEC2A Unlock — File Service ($135)

Want to unlock your GPEC2 or GPEC2A PCM yourself? If you have a tool capable of a complete boot-mode flash read (requires opening the PCM), we can modify your file and return it unlocked for you to write back.

This service is perfect for experienced DIYers, shops, and tuners who already have bench/boot equipment and just need a fast, reliable unlock file.

What You Get

Professional file modification to unlock your GPEC2/GPEC2A.
File returned in the same format you supplied.
Price: $135 per file.

⚠️ We do not provide tunes or calibration changes. This service only unlocks the PCM so you can use your own tools/workflow afterward.

Required Tools (examples)

You’ll need a tool that can dump the complete flash in boot mode (service/bench mode). Examples:

DC706
Magic Motorsport Flex
KESS3
bFlash

Other tools may work if they can produce a full boot read of the PCM. OBD reads/partial reads will not be accepted.

File Requirements

Type: Complete boot-mode flash read (not OBD).
Contents: Full internal flash image; include any separate micro/eeprom files your tool outputs.
Formats accepted: Common raw binaries from the tools above (e.g., .bin or the tool’s native export).
Name your file: VIN_CustomerRef_Tool.bin (helps us keep things organized).

How It Works

Open the PCM and perform a boot-mode read with your tool (follow your tool’s prompts/test-points).
Email the BIN and upload your file(s).
include Full Name, Contact Phone Number, Billing address and Complete VIN in email body.
We modify the file to remove the lock.
We contact you via phone or email for payment.
You write the unlocked file back to the PCM using the same tool.
Reassemble, reinstall, and proceed with your own calibration workflow.

Best Practices & Tips

Use a stable bench power supply (12–14V with adequate current).
Follow ESD precautions; avoid flexing the board or damaging connectors.
Do not send partial or corrupted reads—verify checksums/consistency in your tool before submitting.
If your tool outputs separate micro/eeprom segments, include all of them.

FAQ

Can I do this over OBD?
No. A boot-mode read (PCM opened) is required to obtain the complete flash image.

Do you tune or change calibrations?
No. We only unlock the PCM file. You’ll handle any tuning/calibration work separately.

What if my file is incomplete?
We’ll let you know what’s missing so you can re-read and resubmit.

Will this clear DTCs or emissions data?
No. This is strictly an unlock service, not a repair, delete, or calibration change.

Which vehicles are supported?
Units using GPEC2 and GPEC2A PCMs/ECUs. If you’re unsure, send your PCM part number and tool read details.

Legal & Responsibility

For off-road/competition or authorized use only. You are responsible for compliance with all applicable laws and regulations.
Opening and benching a PCM carries risk; proceed at your own discretion. We are not responsible for tool misuse, PCB damage, or installation errors.

Pricing

GPEC2/GPEC2A Unlock (file service): $135 per PCM file.

Ready to Go?

Perform your boot-mode read with DC706, Magic Motorsport Flex, or equivalent.
Email your boot read to Spartanautoworx@gmail.com for “GPEC2/GPEC2A Unlock – File Service ($135).”
We UNLOCK and contact you for payment.
Write the unlocked file back
Start Tuning

Prefer to mail the PCM instead? We also offer a full mail-in unlock service—click here for details.

File Unlock Service