Seems like it's starving for fuel or air. Bled injectors, then found a mouse nest in air filter canister. Just SURE that was the problem, but new filter didn't remedy. This model has plastic sediment bowl and paper filter. Took the fuel filter off and couldn't open the plastic sediment bowl to remove paper filter. How do you do that? So, I guess fuel filter COULD be the problem as there was a little debris in the bowl that I could see, but if that's not it, any other ideas?