u7198 tune lost

[great_white]

I have a 2001 tahoe that the PCM took a dump on . I tried to connect the tuner to pull the tune out and it would not link up . Long story short , i had to get a new PCM and my tuner tune is locked ,,,,, what to do??

[Mike_Levy]

Call Tech Support tomorrow. You'll need proof the PCM was replaced.

Unfortunately the PCM probably wasn't bad. They probably could have talked you through a fix on the phone. GM PCMs are hard to kill.