I went to the Dodge dealer and they scanned it and the P0420 code came up. They checked for exhaust leaks which they did not find. So they cleared the code and said it possibly could come back again. Two days later the engine light came back on. What can i do to fix this problem...
Step 1 – Resolve Engine Trouble Codes The first step is to resolve any other codes that may have come up in addition to the P0420; especially troublesome is the P0300 series of cylinder misfire codes. A P0300 code could be related to something in the ignition (spark plug or coil), th...