1997 Pontiac Grand Am Repair Question
New iac valve high rpms 3-4 thousand
Answer
first clean the throttleplate on both sides as well as iac hole. or remove the iac and shoot choke cleaner in it then start the car. then drive it at least 35 mph to reset the iac and see how it goes. while under the hood look for any vacuum lines disconnected.
before i saw your response i had me and my buddy redo the new connections i got for the iac and that fixed the problem it drives alot better now but now im stuck with the cylinder 1 misfire code p0301 , i checked the front spark plugs and they are all fine but i cant reach the back spark plugs, i believe i need to change the fuel injector for cylinder 1 due to leaking o rings if im ?correct? is there a certain way to change the fuel injector? thanks for all your help!
check yoru fuel pressure first that can also cause a misfire and then check for vacuum leaks, spray choke cleaner around intake if rpms go up or down you've found the leak. it should be 41-47 psi. make sure all yoru electrical like plugs and wires are good as well.