No Fuel Pump For E-38 LS7 ECU Need Help

[Later-A-body]

I have a problem with my E-38 computer and am looking for help. The car is cranking but there is no fuel pump activation with the key on. I am trying to find out what wire in the E-38 ECU activates the fuel pump. After getting the car back from the body shop, I did find two wires from the ECU that were damaged (broken). A solid green wire, and a green/white wire. The green /white wire had been soldered at one point. I put a meter on both wires, only the green/white shows voltage (12v) when the key is switched on. I have a Racetronix fuel pump wiring harness with a 40 amp relay in place, and the wiring harness leading up to the relay is intact. I replaced the Tyco relay in case that was needed but there is no power getting to the relay. So if anyone is well versed in the schematic of the E-38 ECU relating to the fuel pump, I would really appreciated the help. Thanks.

[csouth]

The green and white wire is the correct one for the FP relay. It should send the signal to trigger the relay, the wire goes from the relay to the pump as you have it. Found some pics I can send you the show each pin position on the ecm connectors.

here's a link to one.

http://www.ls1gto.com/forums/showthread.php?t=204916

[Later-A-body]

Good information. Thank you.

[Later-A-body]

The green and white wire is the correct one for the FP relay. It should send the signal to trigger the relay, the wire goes from the relay to the pump as you have it. Found some pics I can send you the show each pin position on the ecm connectors.

here's a link to one.

http://www.ls1gto.com/forums/showthread.php?t=204916

I was able to get the fuel pump working. Thank you csouth for the diagram and information.

[csouth]

I was able to get the fuel pump working. Thank you csouth for the diagram and information.

Good to hear! Glad to be of some help....