Thread: O2 Faults
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Old 09-05-2009, 06:54 PM   #3
Paul_B
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Join Date: Oct 2007
Location: Tx
Posts: 20
When my CEL kept coming on for various 02 sensor faults the first thing I tried (based on what I'd read in these forums) was to thoroughly clean the MAF with electrical contact cleaner and Q-tips.

No problems since then and that was almost a year ago. Probably worth a try for a few dollars worth of cleaner, although you do need some tamper proof star (torx) bits to get at the sensor.
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