hey, just put the new head on, and I have a plug that needs a home. It is located coming from the main loom, at about #4 cylinder. Its is a 4 pronged female plug, of which 3 wires are used. Their colors are red, black, and yellow. The plug itself is kinda clear, or maybe was white at one point. Again, it is located coming out of the loom on the drivers side of the engine(with all the fuel injector plugs, on the firewall side of the 3000 pipe. It's not the tps, coil pack, either of the vsvs, the plug that goes under the throttle body, or anything else I can see. It may go under the intake manifold somewhere, it is long enough. Can ya help me?