(Kind of Urgent) Throttle Position Sensor (TPS) showing non-continuity??

[a_scobel]

Replacing my throttle position sensor/tps...I'm following the instructions below, but I'm not seeing any continuity at all. (Shows OL the whole time...I know how to work a multi-meter, I work with one every day, so don't think I don't know how to ohm sh*t out ). I've tried 3 different TPS's, thinking one was broke, but all of them show non-continuity no matter where I rotate the TPS to. I'm guessing I'm just doing something wrong, forgetting a step, etc... Any ideas...?? This is kinda urgent, I have an appointment to get my new tires in a couple hours...

1. Disconnect the connector of the TPS.
2. Connect ohm meter between terminals 3 and 4.
3. Insert a feeler gauge with thickness 0.45mm (.0177 in.) between the throttle stop and the throttle lever.
[Fold a piece of paper in half 4 times if you don't have the feeler -Ed.]
4. Loosen the TPS mounting bolts. Turn the TPS all the way counter
clockwise.
5. Check for continuity in this condition.
6. Slowly turn the TPS clockwise until the point where continuity and
non-continuity is found (pins 3 and 4).
7. Tighten the TPS mounting bolts.
8. Check the voltage between pins 2 and 4 of the TPS with the ignition
switch on, but the engine not started.
9. Standard value: 400 - 1000 mV
10. Remove the feeler gauge.

 

[Spln_Hrd]

i messured mine and got ol or was to much resistance and it worked fine, but i replaced it anyways and my new one read the wrong crap to. so i set mine with my datalogger(i got it a week later)

 

[a_scobel]

i messured mine and got ol or was to much resistance and it worked fine, but i replaced it anyways and my new one read the wrong crap to. so i set mine with my datalogger(i got it a week later)

Eh well isn't that great...so how's somebody who doesn't have a datalogger supposed to set it, then..??? Why are some TPS's settable by just ohming it out, when others aren't..?? My head hurts...

 

[el aguila]

Your TPS is a pontentiometer which has 3 wires:

Power (from ECU, 5V)
Signal (middle wire, back to ECU)
Ground

You should have continuity between Power, and Ground, Power and signal, Signal and ground. Unless the signal wiper wasn't making contact with the variable resistor, however you would still have continuity between power and ground.

This should help you since you're setting it with a DVOM:
http://www.plymouthlaser.com/tps.htm

 

[a_scobel]

hm okay, I did it the ghetto way...I put the TPS on, loosened the bolts, put the throttle to WOT, and rotated the TPS all the way counter-clockwise as it could go, then tightened them up. I figure doing this, when the car's WOT, the little things inside are going to rotate the moving part of the TPS all the way...correct me if I'm wrong! But I put it on & don't have a CEL on like I did when I didn't adjust it at all, so I'll have to wait & see...appreciate everyone's help!