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How to fix obd reading p0455 evaporative emission control system leak detected gross leak?
Wiki User
∙ 16y ago
After several weeks of intermittend codes or P0455, suddenly I could no longer fill the gas tank easily. I had to let gas trickle in. Dealer mechanic said fuel tank would not pressure test so they replaced my locking gas cap that I used for three years, then it pressure tested okay. They also replace the charcoal cannister ($152) and the cannister control valve (solenoid) for another $40.
I bench tested the cannister and found no leaks or anything else wrong with it. I tested the cannister control valve and nothing was wrong with it. Fuel tank filled up okay.
Wiki User
∙ 16y ago
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