Thread: How does my check engine light know?
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Old 09-27-2015, 09:09 PM   #7
aczyzewski
CEL P0306
 
Join Date: Jan 2014
Location: Seattle
Posts: 128
Garage
Just happened to me too. I got about a week's notice. Required two pre-cat O2 sensors. Got the CEL cleared the morning of the last day for inspection. Passed.
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