1995 Lumina 3.1 high idle and hesitation (Full Version)

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1995 Lumina 3.1 high idle and hesitation


  

dg123 -> 1995 Lumina 3.1 high idle and hesitation (1/13/2008 9:21:32 AM)

1995 lumina 3.1.  In the morning when I first start the car the idle is high 2200+ rpm.  Also when it is idling high like this if I rev it to 4000rpm or so it starts to cut out and misfire when in park-neutral.  The car has a slight hesitation when it is acting like this.  I live in Chicago and it seems when it is really cold the car runs better.  Any ideas?

Thanks


  

ktm521 -> RE: 1995 Lumina 3.1 high idle and hesitation (2/17/2008 6:22:26 PM)

High idle could be a vacuum leak, the cuts off at 4000 rpm is the fuel cut off from the pcm


  

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