How to deal with SES code ("P0456"): "EVAP Leak Monitor Very Smal Leak (0.0207") Detected"

KANE AMADOU

MEMBER
2004 MITSUBISHI ENDEAVOR
86,000 MILES

Please, where is the problem? The "SERVICE ENGINE SOON" light keeps on.
Here they dont'know where the problem is. How to get the light off. Thank you very much for your answer!

Sunday, November 27th, 2011 AT 5:56 PM

1 Reply

CARADIODOC

MECHANIC
33,871 POSTS

About the only way to find small leaks is by injecting smoke from a smoke machine. It's white non-toxic smoke at 2 psi. You inject it anywhere in the evaporative emission recovery system, then watch for where it sneaks out. Look for loose hose clamps, dry-rotted or cracked hoses, leaking purge valves, etc.