Well,

Reason #1: I determined that if one connection of the wiring is power the other must be the ground. So positive link to bulb, bulb link to negative connection on injector harness. If I then try to start the motor there should be some kind of blink/glow to say that the wire is grounding out somewhere and fireing that injector. But I got nothing, no circut.

Reason #2: I know I'm not getting ANY FUEL to pass through the injectors, so they must not be firing. If I have the positive comming through I then must be missing the ground. As far as I know the ground wire goes from the injector harness to the ECU, then ECU grounds the wire making it a circut and the injectors fire.

SOOO, I took out the ECU and am going to have it tested to make sure that it is in working order. No since to continue if the ECU is bad.

If the ground wire goes to other places besides the injector, computer, ground please tell me. <img src="/forums/images/graemlins/kewl.gif" alt="" />


87 Toyota 4Runner-RV Head, Custom Grind Cam, Doug Thorley Header, Keith Black Pistions, 2 1/4" Magnaflow cat, Dynomax Exhaust
2003 Toyota Matrix XRS-Injen CAI