Thread: cold rough idle 420 SEL 89
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Old 10-31-2003, 02:05 AM
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Cigar Havana Cigar Havana is offline
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Join Date: Jan 2003
Location: London Ontario Canada
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Solved
If anyone is interested, my problem was solved by replacing the O2 sensor, and adjusting the mixture. The mixture was set, on the lambda meter, to fluctuate between 4 and 5 at hot idle.
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1989 420 SEL
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