Anyone at a GM dealer with access to a Tech 2? Need my PCM reflashed

[cjmatt]

I need to have the pcm flashed with the newer 99 os 9381344 via tech 2 in my mustang so that I can overlay the 4l80e segment. Anyone able to do this? GTPPrix?

 

[Sean]

I need to have the pcm flashed with the newer 99 os 9381344 via tech 2 in my mustang so that I can overlay the 4l80e segment. Anyone able to do this? GTPPrix?

Matt thats actually really easy to change.How much you offering to travel ?

 

[cjmatt]

ill go wherever, the PCM would probably have to be out of the car though because the car is currently in pieces. The current OS in it is apparently a less supported early 99 version that they never had a 4l80 version of. HPtuners is telling me they cant add my 4l80 segment to the current tune and that I need the 9381344 OS instead

 

[Sean]

We could update the OS and drop in a 2000 pcm. the 99-2000 harness pinouts are identical IIRC. I can check later today for you. They funny thing is that it is usually best to start with a truck calibration and I know they made 4l80e 6.0 trucks in 1999.