CHECK ENGINE CODES P0422 AND P0455

2002 Dodge Ram

Tiny

everyan2003

October, 1, 2010 AT 5:16 PM

Engine Performance problem
2002 Dodge Ram V8 Four Wheel Drive Automatic 122000 miles

Looking for a little help diagnosing problems that are causing codes P0442, P0420, and P0455. I know a new gas cap would be a cheap way to see if 455 gets taken care of but looking for a little direction in general.

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