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O.k., I am trying to fiqure out on the throttle position sensor for a '99 2.5 rs what color wire goes with what ie. power, ground, signal. I am a little confused because it looks like on the tps sensor has 4 wires instead of 3. I am almost sure it is the sensor right across from the throttle cable? What sensor is it on top of the throttle body?
Thanks,
Haven
 

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on top is the idle air controlvalve...
the tps is on the opposite side of the butterfly for the throttle
stick a voltmeter into one of the wires on the tps, then with the key on,turn the butterfly's till u are at wide open throttle. Now look at your volt meter...u should read 4 or so volts at wide open throttle...if not...move to a new wire, then open the throttle...continue till u find that wire...when u do..that is your signal wire
 
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