Jay Farr

Hey guys I just recently swapped an 87' mustang 4 cylinder to the v8. The wiring harness I have is from an 86' but my H- pipe is from an 87'. I would hardwire it but the colors don't match. from the h-pipe there's 2 whites and a black, and on the wiring harness there's a green white and a black... What goes where? anyone please?

TwotoneVert

Do you not still have the connectors on the harness? They only go one way. If I remember from my diagrams, the green and black are signal wires and the other is a ground. You will have to compare the diagrams from both years and match them up. The colors may not match up.

Jay Farr

Hey guys I just recently swapped an 87' mustang 4 cylinder to the v8. The wiring harness I have is from an 86' but my H- pipe is from an 87'. I would hardwire it but the colors don't match. from the h-pipe there's 2 whites and a black, and on the wiring harness there's a green white and a black... What goes where? anyone please? The connectors are still on both the harness and the 02's but the plugs don't match. I think my only option is hardwiring them. Anyone know what goes where?

cliffyk

I have no knowledge of the specifics of your situation, however the sensor on your H-pipe sounds like an old 3-wire heated sensor. The 2 white wires are for +12V and ground for the heater (obviously it doesn't matter which is which), the black wire is the sensor's + signal output; ground for the sensor output is through the pipe/manifold back to the block.[/align][/align]These (3-wire sensors) weren't used for long because the signal gound being back through the pipe and manifold sucked. 4-wire sensors added a dedicated ground for the signal (usually a gray wire on newer sensors).[/align][/align]I hope this is of some help...[/align]

Jay Farr

That definatly is some help to me. This is pretty much the last thing I have to do, and then this things ready to hit the roads. Thanks for taking the time to help me out