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Is there a way to check the function of the IAC????I used a scanmaster and tried to set mine but the numbers wouldn't even move....I was stuck a 35 on the scanmaster and it would barely idle....After trying to adjust the IAC I also reset the TPS......Don't know what to do now and I made sure to shut the car off after each time adjusting the IAC...... Anybody wanna help?????


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1986 Buick Regal T-type
Dk. Blue Metallic w/tan leather int.
 

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been a long time since I had an iac problem. Doesn't it buzz when you put a paper clip in the two upper right hand aldl terminals (A&B) and turn the key on?

Normally, there is about a thread or thread and a half emergining thru the tb where the adjusting screw touches the lever. Turning the screw CW should reduce the numbers...If you turn the screw in far enuf so that the idle jumps up...you should be just past zero iac counts.
 
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