127040, RE: 420a problems Posted by Ebster1085, Dec-31-69 06:00 PM
Doesnt the IAC really only kick in during warm up and coasting? I figure once the car is warmed up, the IAC should close to allow just air to pass through the TB butterfly plate. If the idle changes after 10 mins when the car is thoroughly warmed up, I figure maybe its a TPS issue.
If he unplugged it and had the idle RPM set strictly off the stop screw, he would be able to see if the TPS is interfering with normal operation.
No?
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