So I have the Idle bouncing problem that we always hear about and I can't find any vacume leaks but I have a couple of questions.
How do I check the IAC
What are the signs of a bad map sensor
and how do I chack the map sensor.
thanks alot guys

 

disconnect the IACV and see if it makes a diffrence. if it does it might be it, replace it with a known good one and try it again.

 

try cleaning it out.. might get carbon buildup and not flow enough air. when i get my car outta storage i will fix the same problem on mine and let you know

 

disconnect the iac with the car running, idle should be abourt 450 - 500 if not turn the screw on the throttle body to bring it to spec.. then turn the car off, remove ecu fuse to clear code. plug in iac. restart and check

 

I had the same problem. I thought it was the IACV too but I took my throttle body off and there was something rattling inside it. It was my fast idle valve that is mounted under the throttle body. You have to adjust the valve inside of it I think. My valve wasn't even screwed in. I don't know how the ---- it came out. I'm thinkin the last speed shop must of been messing with it cause they said they fixed the problem and they did but it started up again. Well hope this helps.

 

http://www.g2ic.com/forums/showthrea...threadid=35534

http://www.g2ic.com/forums/showthrea...threadid=42969

hope that helps very good info

 

thanks alot for the help guys.

 

bouncing idle i believe that is a vacuum leak check the TB to intake mani gasket and the FITV fast idle thermo valve. Just like they said in that write up.

PS to who ever posted that write up, THANK YOU I just printed the entire thing and will be try ALL OF THOSE in the late spring