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Smog Check & Emissions Questions and Answers

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  Question Answered
  1987 Volvo 240DL 2.3L automatic - Very high NOx. Has new CAT.
by jim   
Yes (1)
  1995 4.0l I6 Grand Cherokee failed NOx emissions 25 mph test. My scores are 1086 Max: 533.
by justin   
Yes (1)
  1995 Nissan Pathfinder failed smog check for high NO. What's wrong?
by Joe   
Yes (1)
  Ford 1986 Bronco II - Can I replace the Catalytic Converter myself?
by Steven   
Yes (1)
  Should our 1976 GMC Pickup have a catalytic converter?
by Christina   
Yes (1)
  1989 Mitsubishi Galant. Failed smog check for high NO (PPM) emission. Max 559, Meas 635
by myrna   
Yes (1)
  I have a 1989 Jeep Wrangler with a 6 cylinder engine. It has a carburator. I failed my smog test.
by david   
Yes (1)
  1991 Lexus LS400 failed test smog test for high HC.
by krk   
Yes (1)
  1988 Ford Thunderbird failed smog inspection due to high HC.
by Maria   
Yes (1)
  1993 Isuzu Trooper has high CO, check engine light not on, and it failed the smog test.
by ram   
Yes (1)


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