I have a 2002 dodge intrepid se 2.7l automatic. Every so often it will not accelerate from a stop when the engine is cold, not so often when it was at operating temp. It has thrown DTCs p0452, and p0300 quite often. Recently it thru those to codes and p0440, p0132 and p0138. Just did a smoke test but I didn't really find a leak, but I may have done the test incorrectly. I read that there maybe a leak between the filler tube and the plastic piece on the top of the filler tube when it is rusted. Could all ofthese codes be caused by an evap leak? Any ideas would be greatly appreciated, thanks.