I'm installing a Wide Band Commander that I'd like to use for data logging. The air/fuel is already hooked up and working, but I'm having trouble finding the right wires to attach the leads for the rpm and throttle position signal. They say I can use the negative lead from a fuel injector for the rpm signal. Does anybody know which is the negative lead? Each injector has one red lead and another of a different color. Also, which wire is the 0 - 5 volt signal on the T/B? I have a gray/white stripe, gray/red stripe, and looks like brown/white stripe. The Ford shop manual doesn't cover this. Looks like I need another $200+ worth of manuals. :shrug:
