X-Type ( X400 ) 2001 - 2009
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Evap leak (p0442 & p0456)

Old 04-16-2019, 03:29 PM
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Per Brutal, he says it's never been the cap. He says a cap gives a large leak not very small or small.
Old 05-15-2019, 06:00 PM
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I'm pretty sure it's not going to be the gas cap either. I do not hear a vacuum sound upon opening the cap.

For the time being I bought a new code reader (gave the last one to my son), and I just cleared the P0456 code.

Is just clearing it once every 3 months and ignoring it a bad idea?
Old 05-15-2019, 08:42 PM
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Per several member techs here, they told me it does not affect anything on the car or cause a future problem with any part or component., It's an environmental requirement. I cleared mine for over a year until I couldn't.

Like Jay Leno relates. A brand new 1960's car, sitting still, not running, emitted more pollution than a modern car sitting idling or driving down a freeway.
Old 05-16-2019, 08:27 AM
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Originally Posted by dennis black View Post
you can do it without dropping the tank ...little fiddley but can be done
i read some where...ill see if i can find it
yep you dont need to drop the tank to replace the tank seals or epoxy the center evap loss tank valve. Just need a cutoff wheel . Remove the back seat and cutout the floor to access the top of the tank in entirety. Just be carefull of wires and lines.
(disclaimer. That is sarcasm before someone does this as says i read online to do this by a tech)
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