Regular Smog Check
STAR Smog Station
Smog Check Repair
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Smog Check & Emissions Questions and Answers
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EGR Valve
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1997 Infinity I30 High NOx After EGR Valve Changed
by
dion
Yes (1)
1990 to 1995 Honda Accord How to Pull Trouble Codes
by
marcos
Yes (1)
2000 Honda Civic Failed Smog Test High NOx
by
Nick
Yes (1)
1994 Buick LaSabre Failed Smog Check with New Catalytic Converter
by
CliffTimsit
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1989 Dodge Dakota High NOx Problem
by
gino
Yes (1)
1979 Porsche 911 Can Not Find an EGR Valve
by
Michael
Yes (1)
1991 Pontiac Firebird High Emissions HC CO and NO
by
Jeff
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Honda Civic high NO readings
by
david
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Why did my 1998 Toyota Camry Fail HC at 15mph
by
Sanjay
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What are my options if my Volkswagen replacement emission parts are obsolete?
by
Rolando
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