TwinTurbo.NET: Nissan 300ZX forum - Wacky idle causes?
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Subject Wacky idle causes?
     
Posted by dutch_Z on October 09, 2011 at 4:17 PM
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Message Hi guys,
I've done lots of research, but would like to see if these symptoms point to something more obvious. Sometimes my car will idle high when I start it, like 1500-2000 rpms. Sometimes it does that even when warm. Other times, it's fine. Second, when I decelerate, the RPMs will suddenly drop off at about 1600-1800 RPMs and then bounce around within a few hundred RPMs, and as I come to stop, they will sometimes drop to about 600 RPMs and return to normal upon stopping. Third, my car will occasionally run like crap for a few minutes after it sits for a week or two. I'll press on the gas and it will kind of chug and sputter. Once I drive it for a little more, it's fine. Does all of this point to something specific? Thanks much.

     
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