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...
Check Engine Light: What to check first, repair options 19-049 21-2381 1. Clearing the code and checking if it comes back: 2. Comparing the signals from the pre-cat air/fuel ratio (Front O2) sensor to the post-cat rear O2 sensor. ...