Question about 1997 Chevrolet Cavalier

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Running rough, like not firing

Changed plugs, wires, cam sensor, crankshaft sensor, now i'm checking the air flow sensors, seems like it ain't getting air. every now and then it acts like it got fresh air and the motor smoothes out. when its cold, it runs great but after heating up it runs rough

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  • army_mama07 Jun 22, 2009

    Does the catalytic converter have sensors in it?

  • army_mama07 Jun 22, 2009

    Thank you so much! You are awseome!

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  • Master
  • 316 Answers

Your "catalytic converter" is becoming clogged. The exhaust is not properly escaping, and the problem will get worse. A new catalytic converter will cure the issue.

Posted on Jun 22, 2009

  • its420_us Jun 22, 2009

    No sensors on the cavalier.

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