[cabmandone]

My daughter told me the CEL was on in her 2010 Ford Fusion. I told her to stop by Autozone and have them read the codes. P0446 (Evaporative Emission Control System Vent Control Circuit Malfunction). Autozone guys says "most likely cause is the vent control valve" says a new one is $80. I tell my daughter to just drive it home it's not a major issue. I put a new $20 valve on, clear the code and send her on her way. Same day in less than 10 miles... damn CEL is back and so is the P0446 code.

I've read on many sites that gas cap is a primary cause. Problem is, this car doesn't have a gas cap and I have no idea how it actually seals. I'm going to put it up on the lift and check hose lines between the valve and the charcoal canister as well as the line on the filler neck. From there I'm lost. I know it's not a major concern but I like to have my kids cars in good working order. Friggin emissions codes!!