I had to replace my CAT closing winter after using my remote starter for a while, and again this year I got the PO420 code... I'm thinking the remote starter is flooding the CAT? A week ago the coup¨¦ would not start in the cold unless I held down the gas as I turned the push button, then I put within gas line ant-freeze and it seem to fix the starting problem. Today the PO420 code came on...
Answers: Cat is gone again.sorry.But you still should own warranty if that was replaced just 1 year ago.
Answers: Cat is gone again.sorry.But you still should own warranty if that was replaced just 1 year ago.
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