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95 olds cutlass supreme runs rough at 55mph @ 2000 rpm

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Old 07-16-2013, 11:05 PM
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Default 95 olds cutlass supreme runs rough at 55mph @ 2000 rpm
My 95 olds cutlass supreme runs fine etc until I get up to 50-60 mph at 2000 rpm when it will run rough, like its not getting enough fuel or spark.
I changed out the plugs and wires to no avail.
Is there some kind of overdrive sensor??
Any suggestions?
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Old 07-16-2013, 11:06 PM
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Btw. It runs fine at2000 rpm at any other speed.
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Old 07-17-2013, 06:30 AM
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normally some kind of ign, problem. whens the last time the plugs/wires were changed? check coils for corrosion?
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