Did a LT swap in a 92. Ever since swap we have a dead pedal only in gear in ramp in WOT. You can pop the throttle in park and it responds. But in gear there is a dead pedal like when you Zero out TM in the 07+ Trucks. Thanks!
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Did a LT swap in a 92. Ever since swap we have a dead pedal only in gear in ramp in WOT. You can pop the throttle in park and it responds. But in gear there is a dead pedal like when you Zero out TM in the 07+ Trucks. Thanks!
post tune
It's the stock 2014 pcm. No codes.
If driven calmly the pedal response is good and works flawless. When tires break loose like in a power brake pedal goes dead until you key off for a couple of minutes. Then key on and it's back to normal.
brake torque management needs to be disabled it sounds like....probably a bunch of stuff if it is stock cal.
Well pre GM It's a ebcm communication issues. Might need to disable all TC functions or need a DBC TB . Brake TQ in TM is disabled.
Are you feeding the ECM a VSS signal? I've seen that cause this issue before.
Yes we are.. We can break torque it and once we do that the pedal goes dead and takes a couple cycles for the pedal to relearn its self.
some kind of limp mode? what have you done with the Diag tables?
What ever is not used its Disabled.
Update on issue... Had a faulty pedal sensor.. Truck is fine and with a happy customer!