Hello everyone I have been searching around on TG for a couple of days and I have not found an answer to my question.
I have a 91z Lb9 tpi with an high idle, but if you pat the accel peddle it goes down to normal any suggestions on how to fix this prob would be helpful thanks

 

I've had that problem !

try ajusting the throttle position senso.. its on the left side of the throttle body held on by 2 torx screws.. adjust up and down