I've had some good luck tuning a P10!! I finally got to the junk yard and picked up a P10 from a 2002 Trailblazer. I read it with PCMHammer and it has the 12587430 OS like I was expecting it to. I disabled all the VATS settings and copied my VIN to the system settings and put it in my 2004 Envoy. My...

It's been a while, wondering if there is anything new with P10?

Ok. Thanks for the quick reply.

I've been gone for a bit with a busy summer. Any new developments or progress with the P10 ECM's? I've been looking for a P10 out of a 2002 Trailblazer or Envoy at the junk yard to mess around with, but not having any luck.

I think this because you changed OS, and PCMHammer does not write the 512 bytes or so of slave CPU data. I think thats where the electronic throttle stuff is. You'll need to go back to the original OS and edit it with universal patcher. If you want to change OS, then probably the only way at the mo...

Gatecrasher wrote:Yeah. It's the 2nd one in the list I posted.

12584594
>12587608 <---
>>12589825
>>>12590965
>>>>12597031

I saw that, I was wondering where I could download it from? I've looked in all usual places and haven't found one.

It seems I'm not as smart as I thought I was. The top number is hardware. The bottom right number is the end model part number. That number is the combination of the hardware, OS, and all the calibrations present at the time the part was manufactured. Those end item parts are available for older co...

Gatecrasher wrote:Is the label still legible on the spare PCM? I might be able to tell you which OS it had if you can post the numbers from the label.

The contents of both new and old labels would be ideal.

Here's the pics of labels, 1st one is junkyard PCM
2nd one is the stock PCM.

I do not know the relearn process, however some clarity for the knowledge banks would be helpful ... 1. The original OsID on your Envoy is ?? 2. The Original OsID on your Spare is ?? 3. They both ran your Envoy correctly (including Throttle using spare PCM) ?? 4. You did an Os change to the Os of t...

Okay, got my Envoy to run with the new PCM and modified tune, but I am getting a P1680 code and I have no throttle. My thought is because it's a different PCM it is not communicating correctly with the bcm. Is there a way to sync them together? I also deleted all the VATS settings in the tune. Any s...