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06-23-2006, 07:40 AM

#11

willwren

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Quote:

Originally Posted by wjcollier07

oh and, i know my o2 is ok for now, my engine puts out a PERFECT air/fuel mix through all RPM ranges....

Of course it does. Because the AFR being reported by your PCM is what the O2 sensor THINKS it is. Even a tired AC Delco O2 sensor costing you 5mpg will report perfect AFR because it simply doesn't know any better.

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06-23-2006, 07:44 AM

#12

BillBoost37

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Quote:

Originally Posted by Peterg22000

well if Pat (93SLE) is right its ever 13 years or so

but id figure a yearly thing, anybody say otherwise?

Pat'* car is low mileage though. However upon putting in a fresh set of TR55'* he noticed better mileage and power. Much more power.... So much in fact that he changed the wires.