RE: [DML] ACCELERATION PROBLEM
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RE: [DML] ACCELERATION PROBLEM



Mike, From what you say it sounds like the WUR is bad. Has it been changed
lately.  Running to lean on fuel.
John Hervey
www.specialtauto.com



-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
mike clemens
Sent: Sunday, July 06, 2008 5:08 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] ACCELERATION PROBLEM

Josh's car has once again got me stumped.  Here's what is happening:  Start
the car up and it idles right on specs, try to give it gas and it wants to
hesitate and almost quit.  Back off the gas, it goes back to idle.  As the
car warms up, you can get more and more rpm but never full throttle.  After
the car is warmed up to where the fans come on, the idle hunts up and down,
between 650 and 850 rpm.  The car starts backfiring if you try to go above
5000 rpm.  If you move the throttle off the microswitch that controls the
frequency valve, idle stabilizes at 950-100 rpm.

The plugs are new, the idle speed motor is new, the injectors have been
cleaned by JH and are all working.  All vacuum lines have either been
checked or are new, no leaks.

Any ideas of what might be wrong?

Mike   TPS   1630


      

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