I have a 1986 Trans AM V8 5.0 FI TPI. My car's idle is way off! My gauge needle jumps back n forth gasping for air or something and then dies/stalls after 15 seconds unless I give it gas and drive it. I've checked the vacuum lines and I just cleaned my plenum and put in new gaskets. Does anyone think all I have to do is clean/replace my IAC sensor or what? Has anyone had this problem before and what did you do to fix it?

 

try unhooking your battery for about 5 minutes ,it lets everything reset itself.hope it helps.later jimmy

 

Try cleaning the IAC and do the adjustment procedure. Seems to be the cause of a lot of idle issues. Badman

 

thanks I already had the battery unplugged from doing other repairs to replacing the EGR Valve and Solenoid and cleaning the plenum. I will try cleaning my IAC and the idle speed setting procedures. I just want ideas thrown out there that I haven't thought of yet and if I need to start looking into other possible causes for my idle being way off.

Thanks