Need Help
 

Here's the deal i was on the highway and when i went to to get on the off ramp my car shut off ,so i started checking it and it all aimed to the fuel pump,i check the fuel pump and sure it wasn't working,then i get the new fuel pump in and the car tries to start but it won't and since the car has a turbo timer it stays on with the open switch and there is a buzz coming from under the intake manifold, is there a relay or something thats causing my car not to start that would make such a noise??
thx for the help in advance

More details.....mods, more symptoms, etc.

How do you know "it was all pointed at the fuel pump?" Does the car crank/try to turn over?

your gas level is fine right? not too low on gas or anything?

oh ok the fuel pump i bought is the supra tt fuel pump , my mods are intake ,dp ,mp,exhaust,street port ,pfc .
the car does like its about to crank up , i tested the fuel pump and it really came out to be bad it spit out for a sec then no more fuel would come out.

plenty of gasin the tank

sounds flooded, make sure you got enough juice in your battery. Pull the egi fuse and crank it for about 20 sec,. do this 2 or 3 times and try to start it. If it doesnt fire up do it again untill it does.
The click/buzzing comming from the uim is normal...

and the new fuel pump tests out fine? It does like its about to crank up, meaning its not cranking? Is it flooded? The problem could also be ignition or electrical related

was the system primed after your fuel pump swap??

since you loose pressure in the system after removal of the pump, im almost certain you have to prime it otherwise you'll have a hard time starting the car initially..

believe it or not but when my friend was building his drag car (honda lol), he had 2 fuel pumps in..at high rpm and full boost, the engine would choke, almost detonating the engine..he found out later on that one of the pumps was installed in reverse..lol

so i guess thats another possibility..

well i tried the egi fuse ,still hasn't turned on,any chance my injectors have gave up? new pump works fine.

well on installing the furl pump the wrong way i dont think so ,there is on ly 1 way for possitive b/c the negative wont fit to the possitive and the hoses i marked them before uninstalling.

I would think it was an electrical problem like a bad ground. However if you think it's flooded just take out a spark plug and if it's soaked in gas then you know its flooded. Follow he procedure for fixing a flooded rx7if thats the case.. otherwise get a multi meter and test the voltage at the plugs and check for a ground bolt that might have come loose.

I thought all you needed to do is floor the accelerator pedal while cranking to kill the fuel supply. Of course unless you are flooded that does not help.

ok let me try pulling the spark plugs out

ok so i pulled the spark plugs out made engine turn till fuel was completely out ,poured some atf in the sprk plug holes put the spark plugs back on then turned the engine again ,plug the wires and fuel pump relay again ,the car turned on and was running real shitty and smoking alot like its supposed for 30-40 secs so i let go the gas and it cutoff .tried to turn her back on but nothing .she stayed like she was at first. is there anything else thats causing this problem?
thx in advance

anyone pls help

so the latest is that to turn my car on i have to press the gas a lil and it will turn on and will stay on for like 20 min then all of sudden its shuts off ,and since its warm it won't turn on,any ideas .thx

How's the idle when it's running? Smoking? Rough?

yes its smoking a lil and the idle keeps dropping rill 950rpms and when it goes lower it just shuts off

what color smoke?

white smoke

its white smoke but it only smokes at the begining ,after a while of the car on you cant even tell of the smoke

not to be the bearer of bad news but your car has the symptoms a cracked apex seal. mine went the same way (stalled when i got off the highway ramp). then it was really difficult to start and when it did start it would smoke heavily.

do a compression check. good luck.

ill do the compression check ,but was your car difficult to turn on at all times or just when hot??cause mine is just hard to turn on when hot. thx