Regular Smog Check
STAR Smog Station
Smog Check Repair
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Which Type Should I Choose?
Oxygen Sensor Questions
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Oxygen Sensor Questions
Question
Answers
Does my check engine light have to stay illuminated when I start the car to pass smog?
by
Janaya
1
My 1987 Mazda RX-7 failed the smog test for high HC and NOx. Can it be a bad oxygen sensor?
by
Tim
1
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