Question about 1994 Oldsmobile Cutlass Supreme

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How do you bring down emissions in exhaust. - 1994 Oldsmobile Cutlass Supreme

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You will have to explain which one & why,
need the inspection report emission numbers
& your state & limits for exhaust gas


HC
CO
CO2
NOX
O2

Posted on Nov 30, 2012

Testimonial: "Thank you. I'll give it a try."

  • 4 more comments 
  •  Kevin DeWitt
    Kevin DeWitt Dec 03, 2012

    Low Idle

  •  Kevin DeWitt
    Kevin DeWitt Dec 03, 2012

    HC 379, CO% .52, CO2% 14.1, O2% 1.0

  •  Kevin DeWitt
    Kevin DeWitt Dec 03, 2012

    High Idle: HC ppm 71, CO% .26

  • Anonymous Dec 03, 2012

    Start with new spark plugs. I do mine ever 3 years. If you got inspection issues,do them,new air filter,for inspection only unless you want to use 5W-30 Full Syn Oil like Mobil 1 get at Wal Mart. Clean PCV Valve & hoses & no vacuum leaks, New Oyxgen Sensor if over 100,000 miles on it, You maun issue is High HC-sort half ignition & half fuel related, if in the end you have problems you may have to relpace the exhaust converter,they last 12 to 14 years. That should give you some items to work on Kevin

  • Anonymous Dec 03, 2012

    Your only problem is at low idle otherwise your good given a 1994 car. Just too rich at high idle. Clean rotor & cap if got a distributor

  • Anonymous Dec 03, 2012

    I meant low idle

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