Running out of ideas. Idles very rough when started cold, idle is worse if it is colder outside when starting, runs great after warm up for 15 minutes, problem started after 4 month storage, no trouble codes, O2 sensors checked OK, IAC replaced but moves only slightly, restrict the air more and it idles correctly, no leaks on the intake manifold, acts like a partially open egr valve but I can't locate the egr valve - it should have one, new gas, battery OK, all new wires & spark plug and tune up last year at 100,000 miles and it ran fine then.
I'm sure that something simple is being missed and some sensor is screwed up.
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Thursday, November 20th, 2008 AT 6:47 AM