Hello all - I've been battling the P0455 light for a long time now to no luck. I've replaced the gas cap with a new OEM one, the EVAP solenoid under the hood as well as the solenoid in the charcoal canister above the rear diff (which is a crazy spot for it and I had to drop the diff to even get the solenoid swapped ).
After all of that, I still have the code and the message popping up on the nav to check my gas cap. Is there anything else I can try or suggestions anyone has? I'd like to avoid a smoke test at the dealer if I can as those don't seem cheap...
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