2002 mustang gt Idle problem
I know this problem is very common in mustangs. I read various threads on the forum. My idle is very inconsistent all day. I replaced my MAF and PCV. I checked my EGR and it was good as well. I cleaned my IAC but the idle continued to be inconsistent. Today it finnaly threw codes at me and their p0420, p0430, p1000, and p1125. ANy suggestions. Im thinking of purchasing a new IAC valve but i read on threads it still didn't fix the idle. THanks everyone!