ok i thought i got to the root of this problem before a few months ago but apparently not... i havnt driven my z too much since i did a spec 3 clutch and steel flywheel install, 1.6 rockers, electric waterpump, msd 6a box, egr and air pump delete, complete hvac deletion and pcm4less tuning to comp for everything... i took her out today for a drive and opened it up on the highway up to about 4500rpm in 5th and then shifted into neutral however the idle didnt fall back to 1k.... it stopped and stayed at about 3500rpm and could NOT get it to fall again until i shut the car off for about 20 min... on my supercharger intake elbow i have a HKS BOV which last time i had this problem i took the BOV off and secured some aluminum foil between the elbow and the bov deleting the BOV thinking it was letting unmetered air into the inatake manifold... i was wrong, the problem is back agian and its such a pain! im thinking would the problem lie in the clutch/flywheel? a vacuum leak? egr block off plates? pcmforless tuning? unadjusted rockers? ALSO the car is throwing NO codes which is making this more frustrating... thanks for any insight.....
-chris
-chris
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