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Old 01-02-2008, 03:11 PM
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J-Ri J-Ri is offline
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Re: crank. position sensor question.

A warped ring is a possibility. Dirt, sand, gravel, etc. could also cause the rubing. There is very little clearance between the ring and sensor.

I would not expect moisture to cause an eroneous sensor reading, as it is magnetic, and water shouldn't affect a magnetic field. If the water were to freeze on the ring, this could also be a source of the marks.
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'04 Cavalier coupe M/T 2.2 Ecotec
Supercharged 14 PSI boost, charge air cooler, 42# injectors
Tuned with HP Tuners
Poly engine/trans/control arm bushings
Self built and self programmed progressive methanol injection system
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