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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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