P0457 replaced a lot, what is left?

**yamaha_rider619** · 01-07-2011 01:06 PM

i had a local dealership look at my cel 7 times within a month and a half. cel is p0457, emission leak, loose gas cap. The service manager told me they cannot find the leak and I need to go somewhere else to get it fixed. The fuel pump gasket and the fuel cap has been replaced twice, blue t piece vacuum has been checked, turbo inlet repaced with oem.

At this point the mechanic smoke tested it multiple times and cannot find the leak. I will take it to a dealership on tuesday, but i want to try to find the problem myself tomorrow. Any advice would be greatly appretiated.

**Donkey** · 01-07-2011 01:41 PM

Could easily be any one of the rest of the vac lines tied in with the blue T. Also could be an issue with the charcoal canister.

**yamaha_rider619** · 01-07-2011 01:50 PM

So basically hoses connected to the t piece or the vapor canister?

**SD_GR** · 01-07-2011 02:02 PM

Look at the canister closely and look at the harness that has a clip there. That clip sometimes gets moisture trapped inside, corroding the contacts and causing a CEL.