Thanks alot for the quik reply but i am still very confused. As for cleaning out the factory wiring all i ever come up with in the search is reply's saying to use the search to find information on it :S I have stared at the megamanual for quite some time now and continue to become more and more confused. I believe i have found the wires on the tps and crank angle sensor that feed the ms but still am unsure what to do with the others? do they need power? in the wiring diagram symtech supplied it shows pin28 used as 12V to MS, which they show running to the injectors and to a relay hooked to the ignition switch. Does this wire also feed power to the other sensors? Or is that what this +5v Vref pin26 wire is for? I would think the wiring diagram would show what wire feeds the sensors. as for having these things ran by relays i was understanding that in the megamanual. Please help, im dying to drive this thing