#3826, "RE: Wiring MS wires into Stock ECU injector harness??" In response to In response to 1
Your injector harness has a quick disconnect that seperates it from the main engine harness. I went to the junkyard and pulled one of these connectors and then wired the MS to it. That way I can switch between the MS and stock ecu. You wouldn't want both to be sending voltage a the same time. It would be one or the other.