I CHECKED PSI AT CONTROL BOX AND IT WAS OFF .HAD SENT PUMP AND CONTOL BOX IN AND HAD REBUILT . STILL SMOKED BAD SOME OF THE TIME .. REPLACED ALL INJECTORS AND RUN OVER HEAD STILL SMOKED BAD SMELLED LIKE OIL NOT FUEL .. FOUND THAT OIL WAS RUNNING INTO EXHAUST B... Login to read more.