Thread: P0455
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Old 05-29-2015, 12:25 PM   #4
grinerizer
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Join Date: Jun 2014
Drives: 2014 Subaru BRZ Limited SWP
Location: Florida
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Evap leaks can be very simple, or a big pain.

Don't top off the gas, once it stops the pump, it's done. The overflow goes into your charcoal canister, can kick this code, and will screw your cat up later down the line.

Tightening your gas cap, one click and you're done.

If you've already bought a cap, and are utilizing it properly, the next step is a smoke test. This can take awhile depending on where the evap leak is, and how small it is. It can turn into the proverbial needle in a haystack, trying to find a .00022 mm leak somewhere in an entire car.

Call your dealer, let them know where you're at and what you've done, and let them proceed.

Also, there is info behind the code that helps with diagnosis. Our computers can see this info, while yours can not. If you're going to take it in, and the code is on, please do not clear it. Saves you and I a lot of time!
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