Hello everyone! I have an 01 Frontier SE w/ 3.3L CC. Once in a while I'll shut off the truck and after restarting it, it will misfire and smoke with a raw odor of fuel from the tail pipe will occur. Service light will flash and sometimes stay on! I've pulled the DTC P0300, P0305, P0325. I've changed the plugs, wires, cap, rotor, fuel filter, air filter, and timing belt. Still have the same problem. After reading some of the articles here on ClubFrontier, some has said to be the injectors sticking open. Is this true? Any advise?