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Throttle body iac question

498 views 1 reply 1 participant last post by  GREGG 
#1 ·
I have a 95 gt with a bbk 65mm throttle body.On the top of my throttle body there is a screw.When I first installed the throttle body the screw was all the way in and the car Idled great.A year later I installed a p-1sc and the only way my car will remain at idle is if I back this screw(bypass) all the way out.I thought my Iac was bad not opening.Backing the screw out opens a bypass and allows air at idle to the other side of the throttle plate.I bought a new iac and still the same problem.I have not touched the throttle plate adj. screw and my tps is set at .92 volts.
 
#2 ·
anyone want to take a stab at it
 
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