problems with idle and transmission shifting

Danny95GT/GTS

New Member
Jun 16, 2019
2
0
1
70
Winter Haven, FL
90 percent of the time the car works perfectly. Sometimes when I start it up it won't idle If I raise rpms it will run and after a few minutes the rpms go up and I can let off the gas and it idles like it's supposed to. It will then shift correctly and drive normal. sometimes this will last all day and sometimes after 20 or 30 minutes it will show amps drop low and transmission torque converter will lock up and shifting will be hard and drawn out from normal. I've changed the idle control valve and the tps but that didn't help. It has a 70mm throttle body on it and bbk headers and pypes loud mouth exhaust from headers back. when she wants to play right runs and drives like a dream
 
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