P0455 CODE

  • Tiny
  • hotott
  • 2004 Pontiac Sunfire
  • 4 CYL
  • FWD
  • automatic
  • 150 miles

My 04 Pontiac Sunfire gets 31mpg, but.
*It shows code "P0455" EVAP leak.
I've tried a different gas cap. I've replaced the EVAP solenoid on top of the engine. I checked vac lines, can't hear any leaks, but my hearing isn't reliable.
*It has a random "miss" or hesitation. It doesn't seem like a missfire, usually does it when accelerating.. Feels like the car "hiccups".
What do I do next?
*Also - I've found oil (maybe water mix) in the airtube near the MAP/MAF sensor. This has me stumped. And worried there may be a bigger problem. The book says this engine does not have a PCV valve.
(I miss the old days when cars were cars, not computers!)

Do you
have the same problem?
Tuesday, May 10th, 2011 AT 1:21 AM

1 Reply

  • Tiny
  • rasmataz
  • Member

Bring it in and have smoke tested

Was this
Tuesday, May 10th, 2011 AT 1:25 AM

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