interested in solution
I have the same problem with my truck. Exactly the same problem. Replaced gas cap, no solution. Added Techron, Helped but came back. Sometimes it run's ok for a while but then it goes to hell in a hand-basket and run's like it is mis-firing. (which it probably is) The EVAP Emission error relates to the Charcoal Canister, does anyone think it could be this? I am at a loss here. If Jupiterak is still out there, you had the same symptoms. Anything help fix it?