newfoundland_rob
New member
1998 350 Mag MPI/Bravo 3 I only have 28 psi of pressure on my fuel rail (supposed to be 34 to 38 lbs), mechanic said it was the pump but after reading about it some it seems that it could be something else ? Just wondering what you guys think, don't want to order a pump till I've made a reasonable effort to make sure that it is the problem. I just finished putting the engine back in the boat, had to take it out the spring to put on a new base pan. Engine worked perfectly before winter storage, just wondering if there is something we might have done (or not done) to cause the drop in fuel pressure. Engine starts and idles perfect now, runs fine till about 2500 rpms (almost planed) then starves for fuel. Also the boat is stored inside, used regularly and kept clean with regular maintenance, I don't think I have a tank problem but possible I guess. I'm going to try running the engine on an auxiliary tank tomorrow (bypass the filter in case that is the problem, changed filter last summer though) Anyway, any ideas appreciated, I know it probably is the pump, just seems strange for the pump to put out consistent 28 lbs pressure if there is a problem with it. Thanks