I've a check engine light with code po440 EVAP. I've done smoke tests and no leaks in the lines, replaced fuel filler assembly, charcoal canister, two VSV values under the hood (engine) and the problem still persists. I've not replace VSV valve attached to canister and I'm running out of things to replace. Ironically the check engine light seems to come once the gas tank registers 1/2 tank or less? VERY FRUSTRATED. Can you help?
Wednesday, November 21st, 2012 AT 1:04 AM