Rough idle and SES light after intake manifold replacement
Intake manifold, all appropriate gaskets, plugs, plug wires, T-stat, and injector O-rings replaced about 8 weeks ago. Engine ran fine until about 2 weeks ago, when rough idle started and SES light simultaneously came on. I replaced IAC twice, but rough idle and SES light came back within a couple days. Engine otherwise runs smooth as silk; no problems. Any thoughts? Haven't yet pulled any codes.
Last edited by 30thAnniversaryCat; 08-16-2016 at 11:36 PM.
Reason: typo error