#81077, "PO455 Evap leak(large) code, How can i fix it?"
that is the code that is coming up on the scan tool for my 97 RS. ive replaced the canister and gas cap and checked hoses visually and i see nothing leaking . i cant figure out why it would register that code . can anyone help? i need a diegram if all evap hose and realated stuff if anyone know where to get one. . the haynes book does not help.
#81123, "RE: PO455 Evap leak(large) code, How can i fix it?" In response to Reply # 1
Originally posted by thedawg Hook an air compressor at 5psi up to one of your vacuum lines and listen for the hissing.
I wouldn't reccommend 5psi. Supposed to use 1psi regulated air to check for leaks. Would not take much to blow a solenoid or canister or put air back where it shouldn't be. I am still researching this elusive issue. I know that many of us have the problem "Co-Driver" code. Got my fingers in a lot of pies right now so please bear with me?
#81132, "RE: PO455 Evap leak(large) code, How can i fix it?" In response to Reply # 2
Fine 1psi then, doesn't really matter.
FWIW I've put 18psi into my system for extended periods of time (turbo) and have yet to blow any EVAP components. I've launched the little EVAP purge solenoid (UFO looking disc at the front of the block) into my fans a few times maybe, but even that didn't cause any component failures.
#81171, "RE: PO455 Evap leak(large) code, How can i fix it?" In response to Reply # 4
If you just start your car and go to the gas station and fuel up while its running you will get that code. All the times i have gotten it it was a hose or doing that.
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