RE: Fuel Filter Location
Sorry to hear about that. I do not think it will be filter related, but does not hurt to try. I assume you have drained the tank and put fresh gas in? 10 month old gas can be bad, could also have water in it, which dry gas would help to fix. Also dump some fuel cleaner in your tank. Some gas uses a wax based lubricant, which is OK for cars that are driven frequently, but for cars that sit it can clog injectors.
As for the filter location on a GEN III I searched and came up empty, even though you do not want a guess my money is in the tank knowing DC. The one way you can be sure is trace the fuel lines from the fuel rails back to the tank, no filter then it is in the tank.