been trying to find some good info to no luck so far.when i installed the 403 in the cutlass i removed the charcoal canister. so now when i try to put gas in the tank it shuts off after about 20 secnonds wich is about 10 cents maybe a little more. i had someone tell me to put a check valve on the vent line with a little breather filter.i tried that and still does it.thought maybe i put the check valve in backwards so i turned it around and same thing. was wondering if anyone has any input that will help solve the problem.
