comptech35

i have a issue with my 88 gt i was at a stop sign and i started to let off the clutch and it stalled out. so i tried to restart it and it wouldnt start. we pushed it to my house and found out it waz not geting any fuel pressure so i tought the fuel pump went bad my friend told me its a commen problems on 5.0's . i replaced it with a bbk255lph which waz a pain all its own. so i go to crank it and still no luck so i replace the fuel pump relay and try again still a no go . so i opened up chiltons manual and found the ierata switch and pushed it but still nothin but i dont think it needed to be reset in the first place. i checked if it gets spark and it does then i tried to hook my diognastic tool that i got from kragen but it doesnt connect to the ecu so i replaced the ecu but still nothin. anybody know were else i should start looking

pastfast125

Is your fuel filter clogged?

blahman20

The exact same thing just happened to me in my 88 LX....Hopefully im just out of gas though, but probably not .

comptech35

fuel filter is good i just replaced that to

comptech35

anybody know if the ecu has a relay or fuse

mjr46

you need to stop throwing parts at it and logically troubleshoot the problem.......if it be the case that you are not getting fuel you'll need a wiring diagram of the fuel system...if you don't have one then when you turn the key to run can you briefly hear the fuel pump power up????

comptech35

no i dont hear anything.

WhiteWindsor

When you turn your ignition on,not turning the engine over, you should hear your fuel pump hum for a second or two. If your not hearing that your pump is not working.

comptech35

ya i know what your talking about but i dont hear it

Cobra77

Well you already changed the relay I believe you said, at this point I guess you could check for voltage at the harness that plugs into the fuel pump, not sure which pin though, as one person said, you'll need a diagram.