Irradic idle

[Rodney McDaniel]

Hi guys, car has 84,000 miles. Car has seen setting a lot since 2012, it was the original injectors, one of the coils had been replaced (so I replaced all with AcDelco parts) I try to use name brand quality parts. I cleaned the Iac valve,(intake system very dirty ) seemed to help. When idle is varying now it's between 1100 and 800 rpm, sometimes it's steady about 750 rpm. We'll see next time I take it out. Maybe it just needs some run time. I have a Matco obd 1 but truthfully I don't know anything about it.