Regular Smog Check
STAR Smog Station
Smog Check Repair
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Smog Check & Emissions Questions and Answers
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High NO
Question
Answered
1993 Toyota Pickup Failed Emissions High CO
by
TIMOTHY
Yes (1)
1990 Honda Accord LX Failed Smog for Ignition Timing and High HC and High CO
by
Edward
Yes (1)
Why Does My 1998 Dodge Avenger Have High NO?
by
Grant
Yes (1)
1995 Honda Accord Overheated and Failed High NOx
by
tyler
Yes (1)
2002 Ford Escort SE Failed Smog for High NO
by
Linda
Yes (1)
1991 Honda CRX Si with California emissions
by
Chris
Yes (2)
Honda Accord Oxygen Sensor and Catalytic Converter Monitor Not Ready
by
adelaida
Yes (1)
2002 Suzuki Grand Vitara Trouble Code P0430
by
yvonne
Yes (1)
1991 Chevrolet Suburban Failed Smog Test Because Running Rich
by
lori
Yes (1)
2003 Hyundai Accent Failed High NO Bad Knock Sensor
by
Roberta
Yes (1)
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