03 WRX CODE p0477 - Subaru WRX Forum
 
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#1 Old 07-16-2010, 07:40 PM
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03 WRX CODE p0477

ok so i have a 2003 wrx with a few mods, i have a 16 g turbo, sti pink injectors 565, catless up pipe and down pipe, cobb race tune, bigger tmic, any ways.. i had it tuned with that set up and then i got some gauges put in, air/fuel, boost/egt, volt, fuel pressure, oil temp and oil pressure and trans temp, and at the same time i put an invidia n1 race exhaust, no cats on entire system, now i am throwing the p0477 "Evaporative emission control system vent control low input" i read all the threads i could find and they all said to check the gas cap( did it and nothing) then they said to check the connector on the box behind the rear wheel, tried that too everything look ok little wet but nothing major wires were in good shape.. so im just wondering if a tune could get rid of the code, im getting it tuned in three days but any info would be nice.
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#2 Old 07-16-2010, 07:47 PM
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oh yea.. i also read somewhere it could be a leak with the fuel pressure system or something and i did just have a fuel pressure gauge put in.. i looked but i didnt notice any thing....
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#3 Old 07-16-2010, 11:43 PM
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Check directly to the left of the alternator. Is there a little blue nipple that's not connected to a hose anymore? Or any other disconnected hoses in that little area?
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#4 Old 07-17-2010, 06:24 PM
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i just looked and everything seemed to still be connected
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