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Re: extremely high idle speed
Here is what I found when I took the IAC back off...
It had not extended at all. It was completely open allowing max air flow...causing high idle rpms. Now the question is why wont it extend...
I cant pull the tip out physically and when its plugged in it wont extend. The tip does however screw into the IAC module. I can unscrew it and make it longer (extended), but I dont think its suppose to be that way.
I tested the four prong connector going to the IAC using a multimeter. I grounded the black (ground) end and turned the ignition to the on/run position. Three prongs tested around .08 volts and the fourth prong tested at .28 volts. I then applied 12V from the battery to the IAC itself going from one prong to another, one at a time to see if the tip would extend....nothing happened.
So....have I tested the IAC and connector correctly? What else should I do or check for before condeming the IAC?
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