Post by
carmo »
https://forums.nicoclub.com/carmo-u91933.html
Sat Sep 13, 2008 10:09 pm
If you pull the EGI pump (electronic gas injection) relay and read the little diagram on it you can figure out how to test that circuit. If you flip the relay over and look real close next to the terminals you can see numbers. These numbers correlate to the numbers on the little diagram on top of the relay. All your checks will be performed where the relay plugs in at. Check to see if you have power on the switched side of the relay. DON'T jump the control side of the relay. The little coil winding on the little diagram on the relay is the control side. Don't mess with those pins. The other side is the switch side. One pin is hot with the key on. The other pin sends the voltage to the fuel pump when the ECM grounds the control side. It sound complicated, but it's not. If you find power at the one side of the switch, then you can turn the car off, jump the appropriate terminals, turn the key back on and the pump should run all the time. In essence, you cut the ECM out of the fuel supply circuit. Sh*t! I kinda got off on a rant there. Keep me posted.