MSefi.com read only forum (Jan.15,2018)

I have a TPS sensor on a ford throttle body from a ford 460 engine.
I'm trying to figure out which pin is which on the TPS. There are three pins labeled A, B, and C.

I looked here:
http://www.megasquirt.info/manual/mwire.htm#tps

but when I measure resistance across the pins, I can only find one pair of pins that shows any resistance at all. And that pair changes in resistance as the throttle is opened. All the other pairs act like an open circuit.

Does anyone know which pin is +5, which is ground, and which is the signal?

Thanks!

I have an aftermarket Ford style TPS so I'm not sure if the wire colors are the same as the stock TPS but the order they are in should be the same. I'll tell you what mine is though. There are 3 wires. The colors are black, green, and orange. The green wire is in the middle. It is the TPS signal. The black wire at one end is the ground. The orange wire at the other end is the 5Vref wire. Hopefully this helps.

Not sure if this helps but I am showing this:


If you hold the electrical connector (harness), vertical, facing the terminals you will see a ridge sticking out at the bottom right on the connector, this keeps the connector aligned with the sensor. Top is signal return, middle TP signal, bottom VREF. Sounds like thats simillar to what rotarygod stated, good luck.

Well i looked in my ford eec iv book and the pin under the alignment tab is v-ref (+5 volts) the center pin is throttle position and the last pin is sig rtn which looks like a ground for all the sensors