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High CO
Smog Check & Emissions Questions and Answers
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Question
Answered
How Can I Lower NO on my Jeep Cherokee Laredo?
by
timothy
Yes (1)
Toyota Tacoma Failed Smog Test Because CO was Too High
by
isaac
Yes (1)
2004 Hyundai Accent Failed for High NO
by
Johnna
Yes (1)
Nissan Altima Failed High NO at both 15mph and 25mph
by
Lynn
Yes (1)
944 Porsche 2.5 Liter Failed for High NO
by
CALVIN
Yes (1)
Infiniti G20 High HC and CO During Smog Test
by
Michael
Yes (1)
Plymouth Neon Highline Trouble Code P0240 CAT Efficiency Below Threshold
by
ROB
Yes (1)
BMW 318is Failed Smog Test for High HC and NO
by
Jared
Yes (1)
VW Jetta 1.8 Failed for High CO
by
Asuncion
Yes (1)
GMC Pickup Truck Failed High HC Smog Pump Not Working
by
Mark
Yes (1)
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