Subject	misfiring and rpm takes a while to come down
Posted by	inf on April 07, 2008 at 1:59 AM
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Message	So my car is having misfire issues. It'll do the popping noise from the exhaust as well as shake a little bit. The tach needle seems to hunt a little bit, jumping around 50 rpms. It also ends up at different idle rpms at different stops...sometimes idling at 900rpm, sometimes, 750 rpm, etc. Also, when I pop the gear into neutral while cruising it takes a few seconds for the needle to hit idle rpm...what is this indicative of? I've already checked all the connections for corrosion, did a power balance test, checked spark plugs (some had oil on them, but it came from the valve covers leaking down and through the threads..cleaned them off), checked the iacv and what not, did a boost leak test (all I could hear was a lot of air going through the iacv), new fuel filter, ohmed the injectors, ran fuel injector cleaner ohmed the coil packs...i'm stumped on what the check next.
Follow Ups	misfiring and rpm takes a while to come down - inf 01:59:30 04/07/08 I also checked the TPS ohms and volts. - inf 02:02:17 04/07/08 Also visually checked the CAS and PTU connections (n/m) - inf 02:45:13 04/07/08 Did you run the diag on the o2 sensors? Have you - Audioquest 07:59:15 04/07/08 ya, did all those things. (n/m) - inf 11:53:25 04/07/08 Then it's hard to say. Usually a misfire is caused by - Audioquest 12:01:07 04/07/08 Hmm, I left the boost solenoids disconnected - inf 15:12:03 04/07/08 when mine did that...it was a bad CAS. (n/m) - spotz 12:14:02 04/07/08 what was wrong with it? - inf 17:02:54 04/07/08 Mine spun, it was just screwed inside. - spotz 00:03:25 04/08/08
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