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Old 02-06-2023, 11:42 PM   #1
jrhudson
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P0455 - Large evap leak

Hello,

IAG stage 1 built motor.
Jdl turbo

I have been dealing with a P0455. I havent smelled any fuel and did open up the fuel pump area to check for leaks but i havent seen or smelled anything. Ive checked if my fuel cap was loose, it wasn’t. My fuel pump lock ring is tight and at the old marked blue lines. I’ve ordered a new fuel pump assembly gasket and fuel cap to replace these old ones. I pulled off the intake manifold to check on thse hoses and is all clamped up and no punctures. i think im leaking fuel somewhere because ive taken it to work for a week and fuel mileage is terrible. Half a tank of gas would get me about 90-100 miles and thats mostly cruising on the highway.

Anyone dealt with this before?
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