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Old 10-20-2011, 08:53 AM
Al Bundy Al Bundy is offline
Join Date: Apr 2010
Posts: 1,803
charcoal canister

If it has a charcoal canister to catch fuel vapors from the tank, it could be full of fuel. When you fuel up the pressure of the gas going in forces fuel back into the intake and it runs rough. Instead of inhaling vapors, it could be taking in raw fuel. But as you say, it could be a number of things. The coincidence of refueling is what suggests the canister plugging.