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P0455 Wont pass emissions

10K views 5 replies 4 participants last post by  ElantraMax 
#1 ·
Not sure what to do here my 04 malibu new body style with a 3.5L V 6 keeps getting a P0455 code which is driving me nuts... With the new emission standards in Ontario my car will not pass Etest.... i have done everything i can think of to fix it bought both the vent and the purge solenoids, tried multiple gas caps and still cant fix it....only thing i have yet to do is fog the system (not even sure if possible on newer vehicles.... If there is anyone out there that has any idea of what i could change to make the code go away that would be great..


Thank you signed irritated owner lol
 
#3 ·
I read this before and it has gotten me no where i have changed the parts that it talks about with no result it seems like my car is destine for the scrap yard which is a shame as the body is mint on it as well as the rest of the car mind you it has 389k on it lol
 
#4 ·
Sounds like there is a leak somewhere in the evap system and sometimes they are a real pain to find.We in northern Ohio have to deal with the emission test also.Here if you have spent a certain amount trying to fix it(I think 300 bucks)you can get a waiver and pass it that way.Another way is the dealer and some shops can do what they call a smoke test and try and find the leak in the system.Good luck to you. I myself have fought with this code on a few friends cars but before we got as far as doing the smoke test other things gave up on the cars and they were junked.
 
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