I was considering getting a tune by someone who uses HPT.
However, currently I am having issues with TCC lockup on my 2008 trailblazer. At steady speed, consistent throttle, and level ground, the transmission will jump in and out of lockup ever few seconds.
I have already replaced the TCC valve with the one from a Transgo SK 4l60e, installed a vette servo, new separator plate, new lockup and PWM solenoid, etc. Yet the problem remains.
I have taken my vehicle to two different shops and none can seem to properly diagnose it. The first shop claims the PCM is commanding the transmission to lock and unlock.
Anyway, what my main question is.... I know similar tuning software offers PIDs TSTATE9 and TSTATE10 logging to help diagnose why the converter is locking and unlocking. Does HPT offer this as well?