P0456 and only that code.
I've had this small leak on the emission system on my wife's 2008 3.8L Wrangler for about 2-3 years now. I've taken it to the dealership and they haven't been able to find the problem either, and I am also a mechanic. The last fews years I was able to use my scanner and reset it so I could get it through PA emissions. Then the light would come back on a week or two after it passed, so I would put it off for the following year. She only drives it mainly in the winter when her Porsche is in storage and she does not do any off roading or anything.
History: The gas tank has been replaced because it was a recall. Ever since they've put the new gas tank in, we've had problems with it and the dealership doesn't want to admit there's a problem with it. It's been to the dealership a few times and they would say it needs this or that, so I would replace it and the light would come back on. Anyone w/ gas tank recall experience this same problem?
What I have done: It has a new gas cap, new purge valve, new evap container, checked all the hoses underneath/engine bay/behind gas fill tube and they all look great I wiped them off and made sure there were no cracks and made sure all the fittings/clamps were all tight.
We've driven it about 160 miles since I put the new parts on and I can't get a green light to go on on my scanner, it stays yellow so it can't get through emissions because it's not ready yet. I did check my scanner with all our other cars and it is working properly.
The only thing I haven't done is take off the new gas tank or check the connections on top because it has to be removed to do so. Judging from the shape of all the other hoses, I assume they are ok. Only other thing I am thinking is to replace the o-rings that are inside the plastic connectors that attach the hoses together.
Is there some sort of emission control module on the car that I can look at?
How far does your gas fill tube stick out on rear 1/4 panel? My gas fill tube barely sticks out, like the base of gas cap it almost touching black plastic molding that goes around fill tube. I was thinking of adjusting the fill tube so it sticks out further, but not sure if that would do anything because the gas cap clicks and feels like it seals tight.
Thanks for any feedback.