97 Explorer code P0446
I inspected the gas cap and all the emmision lines from front to back.
I decided the valve on the vapor canister was stuck open the vapor canister is located on the frame in the rear mounted above the spare tire and gets alot of dirt and grime from the road thrown up on it. I have driven it several miles and every thing seems to be working no codes yet. Thanks for your help.
Phillip Fell