Help. PCM Fried...I think

[ls1x2]

Long time user here. I've lost count of how many times I;ve flashed this car. 2002 Z06. Car has been down a while. Yesterday the car fired up just fine after sitting. Today I charged the battery for about an hour before I tried to load a tune. Tune kept failing to write. I hit abort, and I tried again but got the same result.

Now turning the car to run gives me a reduced engine power message and the fuel pump cycle is interrupted. HPT is unable to locate the VCM. Suggestions? I don't really follow wtf was so different this time. I have in fact had to abort, and HPT kicked into recovery mode successfully. It did not try to this time.

[Bill@HPTuners]

were you doing a write entire or write calibration the last time the write failed?

[ls1x2]

Write calibration. This is a 3bar sd os btw.

[ls1x2]

Resetting the codes throuh the DIC results in them coming. Right back. 1 of them is 10 pcm no comm. disconnecting the battery overnight did not work either.

[Bill@HPTuners]

sounds like the pcm is not recoverable.

[ls1x2]

sounds like the pcm is not recoverable.

So what are the options to getting it fixed and HPT licensed again?

[Gaspo]

i'm wondering the same thing. somehow i've fried two computers now in my tuning process. using write entire to swap to the 2 bar map, then write calibration only to modify.

[ls1x2]

That just can't be so. Bill has told me he has never seen a failure on a write cal that wasn't a wiring or voltage issue. /sarcasm

I had to buy a new pcm. 2 actually. 1 was a 99 year model flashed with my 02 vin. HPT wants a serial that does not exist in this perfectly good scenario so they tell you to license the whole model year. I then got an 02 411 pcm and had to license it with 2 credits. Finally I can run my car again!