Changed fuel cap, CEL is still on, according to all treads next change is purge solenoid valve. Please let me know before ordering as it takes time, and just to be sure, are there any way to check it. Sure, I reset memories after changing cap, it lights on next day anyway, right after starting, CEL code is P0456, small EVAP leak. BTW, where is the Charcoal canister, I want to check all tubes/connections too. Hope it would be useful for all to know possible weak points.

Hey man did you ever replace the solenoid valve? I'm at this same point and I was just wondering