Cold Idle help with 2.0 Options

[ned911]

Car starts fine and when warmed up runs like a champ. However, when first started she doesn't want to hold idle and driving is very difficult even after a 5 minute warm up. Is there a FI adjustment or is this a timing or points issue?

Thanks,

Ned

[falconfp2001]

You should first state weather this is a new issue, the car has been sitting for a while, this is a new to you car, etc. etc.

AAR is easy to check. Just start the car cold and remove the hose that goes from the AAR to the intake elbow at the Intake elbow end before the throttle body and check for suction. No suction then it is stuck closed. If there is suction then let the car warm up for 20 min I think and then check again for suction. If no suction then it is closed and operating correctly and you should look at other possibilities.

Not saying that your problem is definitely the AAR but I've had this happen before on an engine I purchased complete with EFI, wiring and intake. PO had let it sit in the garage for about a year. I checked everything with the exception of the AAR because it is true they, usually fail open but that symptom is a surge during idle after completely warmed up. I checked the symptoms on Ander's sight which point out the possible problems and things to check. One is a stuck closed AAR.

I replaced with a known good one and problem was solved. You can attempt to rebuild it but I think it is a hit and miss type of rebuild.