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miss at 65 mph


rebel's Avatar
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Join Date: Feb 2002
Posts: 86
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07-19-03, 11:41 PM   #1  
miss at 65 mph

Sirs:

Chevrolet 454 cid with electronic ignition, 1991. When engine is cold runs perfectly. After engine warms up it has a serious "miss" at 65 MPH. Slowing down or speeding up will cause the engine to level out and the miss seems to disappear. I replaced the oxygen sensor a few weeks ago per a set code. There are no other set codes in the readout.

Any suggestions?

Thanx

 
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Joe_F's Avatar
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07-20-03, 08:08 AM   #2  
Joe_F
When's the last time it saw a tuneup? Start with my "The Basics" post.

 
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