Hi, I just had my 2004 Chevrolet Cavalier 2doors 5speed base model read the "check engine" light at the Automotive school where my brother is taking classes to be a "Smog Check Technian and they use a "Genesyst" ODB Code reader(i think that's how you spell it) and it Only shows 1 code which is "P0420A Error Code: Catalyst System Efficiency". If I dicide to just replace the Catalytic Converter will this solve my issue? Or Could it be another part from the Cat is causing and that I should find out? Or Is there any other place or parts that could be causing the Code?
have the same problem?
Friday, June 10th, 2011 AT 7:41 AM