RE: [DML] ? Miss Fire ?

["John Hervey" <john@xxxx>]

Dave, This is normally caused by the 02 sensor doing it job and trying to
adjust for the proper amount of air in the fuel mixture. I would replace the
02 sensor and while the engine is hot adjust the 02 setting till steady.If
the 02 is good which it is, then just re adjust.
John Hervey
www.specialtauto.com




-----Original Message-----
From: doctorDHD@xxxx [mailto:doctorDHD@xxxx]
Sent: Wednesday, June 11, 2003 1:19 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] ? Miss Fire ?


Today I noticed that the hunting my D has at idle seems to follow a
particular pattern. At idle, my tachometer jumps up a hundred rpm or so for
a split
second and drops back to "normal idle" (during this time the engine has no
perceivable change in speed) , then the engine revs and drops back to idle
speed.
Sometimes the tach jumps once prior to this cycle and sometimes it jumps 2,
3
or 4 times. The higher the number of jumps, the higher and longer is the
rev.
Is this diagnostic of anything?

Dave
6530


[Non-text portions of this message have been removed]



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