s13 fuel pump ecu pin 104 blown

[Danny81]

I have searched everywhere and found nothing that helped. Any help is much appreciated. I know i wrote a lot but i didnt want to leave out any details.

My car stopped working out of nowhere. The car would turn over but that was it. I replaced the igniton coil, cap, rotor, maf and fuel pump but nothing changed. I tried putting the ecu in diagnostic mode but the light wouldnt even blink when the key was turned.

I replaced the ecu and the ecu light went on. So I tried starting it. it started but it wouldnt hold the idle without someone on the gas. I unplugged the maf and it ran a little better still like crap though. When i put a good maf on it wouldnt start. I checked the ecu and it was fried again.



I finally took a look inside the ecu and the 104 pin(fuel pump relay on wiring diagram) was blown. I checked the continuity on the ecu harness and the point grounded out. I also checked the continuity on the the rear fuel pump connector and on the relay connector but I'm not sure what each one went too. I checked the harness and didnt see any worn or exposed wires.

Thanks