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Hi all...just a quick question maybe someone could answer i couldnt find and answer anywere...my 02' WRX has a little valve on thefuel return line by the fuel filter and its called the fuel damper valve...just wondering what is this valve supposed to do?...i know its not only on the turbo models.....thanks for any insight...:)

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it is either the roll over check valve, or the fuel return valve.

See, on most cars, there is a fuel supply line, and a fuel return line. It allows pressure equalization, part of the emissions and stuff crap...it can vent unburned pressure gas back to the tank safely.

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ah.......u know i asked one of the master techs at work today and he said it does exactly how it sounds....it dampens the sound of the fuel because the fuel lines run through the passanger compartment...i would have never thought of that...lol

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