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Forum namePerformance/Engine
Topic subjectPO455 Evap leak(large) code, How can i fix it?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=81077
81077, PO455 Evap leak(large) code, How can i fix it?
Posted by 97grnRS, Sep-28-04 08:29 AM
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.

mike
81091, RE: PO455 Evap leak(large) code, How can i fix it?
Posted by thedawg, Sep-28-04 10:51 AM
Hook an air compressor at 5psi up to one of your vacuum lines and listen for the hissing.
81123, RE: PO455 Evap leak(large) code, How can i fix it?
Posted by OldGuy, Sep-28-04 06:06 PM
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?
Posted by thedawg, Sep-29-04 07:08 AM
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.
81137, RE: PO455 Evap leak(large) code, How can i fix it?
Posted by FuSi0N, Sep-29-04 07:35 AM
Check out this thread.
http://forums.2gnt.com/dcboard.php?az=show_topic&forum=23&topic_id=769&mesg_id=769&listing_type=search
81171, RE: PO455 Evap leak(large) code, How can i fix it?
Posted by Star Turbo Talon, Sep-30-04 06:40 AM
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.

Terry

96 Eagle talon ESI
Greddy header - Greddy exhaust

97 Eclipse
Star Stage II - Boost/oil/EGT gauges - 3" custom DP/Apexi N1 3" exhaust - SFMU/return line - Apexi SAFC - Stage 2 6 puck Sprung hub MIBA clutch - Shortened shifter - Koni Yellows w/eibach prokit - Stillen Fr/Rr swaybars - ceramic intake - DEI Keyless entry alarm - Niche 17" Shoks

Waiting to be installed: HKS EVC IV, 450 Turbo injectors, GSX Front brakes (need rotors)