My motor died today. Every so often the fuel will just shut off for no reason. I was stuck today trying to start my car for like 20 min. When I prime the motor before I start it, sometimes the fuel pump will not turn on. WTF Its really weird cause my stock motor did the same thing and now this motor does it even now with a new fuel pump. This problem occurs maybe once a month

 

have you checked your electrical?? i have an assumption that the supply of electricity is getting interupted to the fuel pump in turn causing it to quit.

 

That sounds right, but doesn't that kinda diagnostic labor cost major $$$.

 

you can check it your self if you would like. and no it doesnt cost that much even from the acura dealer. maby like 50 or 60 dollars to tell you what is wrong with the wiring. you could check all of the connections and that sort of thing if you wanted to but thats completely up to you. you might want to check the part that you havent fooled with if you did fool with any while you swapped that motor.

 

Okay thanks dude.

 

Check the fuel pump relay and associated wiring.

 

While were on the subject, is it normal to hear a change of pitch in the sound that my fuel pump makes (walbro 190) when I put on my turn signal/ turn on my headlights?

 

if your car is off then probably becuase it is electronic as well as your signal. maby at idle too if you have pulleys but it shouldnt at 1k or up. or atleast i dont think.

 

FWIW '92 Teg two years ago pump started acting flukey. Had pump replaced, still did it. Yanked back seat and gator clipped to test voltage while wife was driving. I was getting voltage fluctuations that were causing flow problems and fuel starving at WOT. Tested Alternator, good to go. Turned out to be the pump ground loop wire making intermittent contact. I gave it a new ground and no problem since then.

 

Did you check the Main fuel relay? If it starts fine sometimes and then when it is hot it starts terible that is probably it.