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Smog Check & Emissions Questions and Answers

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Question Answered
1991 Chevy Silverado Failed Smog Check Due to High NOx
by Scott 09-17-2017 11:00 AM
Yes (1)
Ford Crown Victoria Failed Smog Check For High HC
by James 07-22-2017 06:30 PM
Yes (1)
Why Did My Corvette Fail the Smog Test for High NOx?
by April 07-17-2017 03:42 PM
Yes (1)
Ford Mustang GT High HC with X pipe and Magnaflow Mufflers
by tom 06-14-2017 11:49 AM
Yes (1)
Fixed - Trouble Code P0300, P0171 and P0507
by irene 06-13-2017 02:29 PM
Yes (1)
What Would Cause My Mazda RX7 To Produce High HC & CO?
by Ben 06-08-2017 02:21 PM
Yes (1)
Toyota Camry Failed for High CO Could It be the MAP?
by Bita 06-05-2017 08:10 PM
Yes (1)
1997 Mitsubishi Montero Failed Smog For High HC and CO
by sandra 04-30-2017 05:55 PM
Yes (1)
1991 Honda Accord LX Has Dilution Problem During Smog Test
by Peter 04-12-2017 12:46 PM
Yes (1)
Toyota Corolla DX Wagon Didn't Pass for the 3rd Time
by Augustin 04-01-2017 10:07 AM
Yes (1)


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