Top stuff, nice clean work and a great win! I knew this was possible, but it needs a tidy install just like that

Awesome, thanks for sharing! Also including the notes about r12 and r13. I need to learn this to get a better dis from the E55 and having an example to work from and compare is helpful.

'808 cant control the 4L60E '424 can run the '424 and will give you MAP based tuning, but wasn't used on that engine from factory so a little more work to connect it and tune it. Absolutely doable. Downside in a VT is it wont run the rest of the car, but no problem for a transplant. '531 will probab...

with careful soldering you should be able to get that going at least with the socket. emulator is harder. and the1s enhanced for flash pcm will add some features and allow boost.

Or 11P tunes for a '424 (was asked about this in private). All bins are only compatible with the PCMs they were intended for.

On the MEC, Manufacturers Enable Counter. Its set non zero on the production line (not sure if always or only some or older PCMs) in virgin PCMs so the factory can flash in the first calibration and security data including seed/key for later use. It also means like you found if param block is corrup...

From a quick scan by eye in a hex editor it looks like its got calibration and operating system. You do need to write twice and allow it to fix checksums because the checksum includes data in the eeprom in the PCM and that data is not available on the PC, so the PC cant calculate it correctly before...

I deleted your image attachment as it contained keys. I am not comfortable with sharing the encryption keys on the site, but I will allow the discussion of how it works.

a late update, no conclusive evidence of AMD and Intel P04 compatability bricks. Only have a few examples of working cross flashes. At this time Im not planning to block Intel and AMD cross flash on P04.

I read that as a massive red flag for power on that circuit