i have a p0453 code, high fuel tank pressure.
i thought it would be a vacuum leak or canister purge valve, which is located in the fender i believe.
could a bad egr vacuum regulator be the cause of my code or is this a seperate problem
so what is this and could it case a p0453 code/ loss of power
the whine/hiss is most noticeable right when i shut the car off like all the pressure is being relieved
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