Thread: CEL on, CEL off
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Old 10-12-2016, 08:22 PM   #14
Dadhawk
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I believe the codes (depending on what they are) will clear after some period of time, at least in my experience. I owned an Astro that used to intermittently through an O2 sensor code (bad sensor) for no reason, usually right before I needed the emissions inspection. If I drove it long enough, the light would go out and it would pass emissions fine, no codes.

The car had over 200,000 miles on it, so I would just always make sure to go get an inspection well in advance when the light had been off for a week.
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