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High CO
Smog Check & Emissions Questions and Answers
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Question
Answered
1991 Chevy S10 failed smog check at idle but not at high rpms.
by
JON
Yes (1)
1998 Honda Prelude. Check engine light is on. What options do I have if I fail smog?
by
Troy
Yes (1)
1998 Toyota Camry, 2.2L 4cyl automatic, failed high CO. Does it need an Oxygen Sensor?
by
Joey Michael
Yes (1)
Hydrocarbons (HC) too high, 1989 Toyota Camry
by
Larry
Yes (1)
1979 Chevy Monte Carlo failed to due to high NO (NOx).
by
fernando
Yes (1)
92 Toyota Camry failed smog test due to ignition timing and high CO.
by
anthony
Yes (1)
1992 Toyota Camry failed smog test for high CO. 3.0 liter engine.
by
anthony
Yes (1)
1977 Chevy Impala 350ci failed smog check tech says CO2 and O2 too high
by
Dan
Yes (1)
1995 Honda Accord EX failed high CO and HC emissions
by
tou
Yes (1)
1995 Chevrolet Camaro Z28 failed smog test for high NO (PPM) why?
by
Armando
Yes (1)
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