92mustang510

Ok so my car runs good for like 10 min at idle then i turn it of then try to start it again and nothing then I pull the fuel pump relay and then it starts and then right away i plug it right back it right after it starts. does any one think it is because of my 24lb injectors and i only have stock mass air flow sensor

brentloftis

So if I understand this correctly, when cold or after sitting a while the car starts up normal and runs normal. After shutting off, on restart it cranks but does not start, you then kill the fuel pump via the relay, and crank it and she starts..... Sounds like fuel to air ratio issue, can you get a fuel pressure gauge and checkthe pressure? Could be faulty FPR.

nitrous_bob

not a chance

and i don't think your pulling the relay, since the car wouldn't start if you did that. it won't fire w/ less than about 20 psi in there , and it doesn't take long for it to tail off after sitting

92mustang510

i am pulling the relay under my seat and then i start it and right as soon as it starts i plug it in like right away with n a sec or so then it stays on