Throttle Position Sensor wire location?

C

Chad

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I need to tap into the Throttle Position Sensor wire for my nitrous and can't seem to locate it. I thought it was Gray/White but the only gray/white seems to put out 12-13ma regardless of the throttle position. Anyone have a location or even a photo for this?

Chad
 
RE: Throttle Position Sensor wire location?

TPS is item 1 below...

http://mark8.org/users/driller/pics/tps.jpg

which is almost impossible to get to on the Gen1.

Connector C170, a 3 pin connector at the TPS has circuit 355, GY/W, which should be the center pin of the harness connector. This is a 0 to +5 VDC output. Ideal voltage at idle is 0.98 - 1.0 VDC. The wide open throttle reading should be 4.3 - 4.8 VDC.

See: http://www.blueovalchips.com/tech/throttlepos/throttleposadj.php

You will also find this circuit at connector C118, the large square looking engine harness connector at the drivers side rear corner of the engine compartment next to the firewall. Also the 60 pin connector C291 at the PCM, pin number 47, Throttle Position Input.
 
RE: Throttle Position Sensor wire location?

Driller, I love you. Really. If my wife doesn't work out I'll call you. :7


That was exactly it (just went out and checked it with the meter). I was on the wrong grey/white wire. There are two. ;) The one I wanted was buried way in the middle of the wire cluster.

Chad
 
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