Chevrolet Cavalier P Codes (Powertrain) P0400 - P0499 P0420

Browse Chevrolet Cavalier P Codes (Powertrain) P0400 - P0499 P0420 questions and answers. Choose a question that matches your symptoms.

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2002 Chevy Cavalier Dtc P0420

2002 CHEVROLET CAVALIER

I Am Getting Engine Light On And The Dtc Code P0420 Whitch Is For Catalystic Performance Below Thereshold. What The Cause Would Be? Car Is...

1 ANSWER

Asked by b1uwzx26

2001 CHEVROLET CAVALIER

P0420 Is Catalyst Efficiency Below Threshold,bank 1 When The Engine Liight Comes On, I Erase The Code With My Code Reader. Sometimes I Can...

5 ANSWERS

Asked by richie25rich

1998 CHEVROLET CAVALIER

I Am Still Receiving A P420 Code After Replacing The Entire Exhaust System Including The Exhaust Pipe, Cat Converter, O2 Sensors Before And...

1 ANSWER

Asked by bstash143

1998 CHEVROLET CAVALIER

I Am Receiveing A P420 Code Bank 1 And Have Replaced The Entire Exhaust System Including The Exhaust Pipe, Cat Converter, O2 Sensors Both...

1 ANSWER

Asked by bstash143

1997 CHEVROLET CAVALIER

Computer Problem 1997 Chevy Cavalier 4 Cyl Front Wheel Drive Manual Read The Codes On The Car Shows Code Po420 I Have Checked The Egr...

1 ANSWER

Asked by John Levitt

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