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O2 sensor question
Posted by BS [Email] (more from BS) on Fri, 12 Oct 2007 14:14:18
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My CEL light has ben intermittent lately and now it's steady. The code says the front O2 sensor. The car ('98 900SET w/115K) runs great, excellent gas mileage still, the O2 sensor downstream of the cat hasn't caused a CEL (so I assume that the cat is doing its job), so I'm a little baffled as to what's going on. Just an aging sensor? Is it screwing up the fuel mixture (even though it's not detectable in performance)? Would a slight exhaust leak--upstream of the sensor--cause this CEL? Do I just replace the sensor and see what happens? Thanks, as always!
posted by 216.227.1...
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