E92 PCM Reverse Engineering

Disassembly, Reassembly, Tools and devleopment. Going deep with Hardware and Software.
enslaved87
Posts: 27
Joined: Thu Jun 18, 2026 8:37 pm
cars: 2019 camaro

Re: E92 PCM Reverse Engineering

Post by enslaved87 »

antus wrote: Mon Sep 28, 2026 5:42 am Thanks enslaved87, I was able to recover it, though im not exactly sure what happened. I changes the unlock process and delays but also had issues with both of my j2534 interfaces on that bus. After power cycling the interfaces it booted up and vin and key had become readable. So I read and wrote the pcm which didnt show any flash damage and the write succeeded but probably didnt change anything. So all up and running and i'm happy with the e92 code about to be merged in to develop in pcmhammer but still none the wiser about the state the pcm or one or both of the j2534 interfaces were in.
Glad to hear it. There are some oddities with this ecu, that's for sure.

I am trying like hell to figure out a way to un-brick one without having to saw it apart. Ive got a substantial pile of donors that would benefit from it.