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oneten
Dodge Dakota
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9/04/2007
23:57:51

Subject: Throttle Position Sensor!
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Anyone know what each wire is on the TPS harness for a 2000 dodge dak 4.7 on the sensor side?



Yup
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9/05/2007
01:34:41

RE: Throttle Position Sensor!
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Why yes. Those are for connections to the PCM.
The allow the PCM to know approximately what angle the throttle plate is open, thereby giving an input to the air/fuel mixture computations.



oneten
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9/05/2007
10:18:34

RE: Throttle Position Sensor!
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thx...i need to know which wire is the 5v data wire. i'm trying to test out that sensor along with every other sensor connected to the pcm. i seem to have a short or a bad sensor feeding the pcm and i'm getting a "no bus" message on my instrament cluster.



Josh
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9/05/2007
13:49:24

RE: Throttle Position Sensor!
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No bus error means the PCM is not able to communicate with the instrument cluster.
Check that the connectors to the cluster are seated properly.



daddio
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9/05/2007
13:52:13

RE: Throttle Position Sensor!
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center wire is signal back to the pcm. should be around .45-.7x vdc at closed throttle.



AJ
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9/05/2007
18:09:11

RE: Throttle Position Sensor!
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2000 dak quad 4.7... where are my MAP sensor and my Camshaft poisition sensor?



jake
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9/06/2007
15:29:10

RE: Throttle Position Sensor!
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AJ look on the left side of your engine for the cam sensor if you are looking at it straight ahead it will be right under the head towards the first coil. its the only sensor there and you will need a 10mm socket to get it out.



SteveJ
Dodge Dakota
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9/06/2007
20:07:18

RE: Throttle Position Sensor!
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The TPS is a simple rheostat - a resistor with a moveable center-tap.

Pin 1 is +5vdc from PCM (that's one end of the resistor)

Pin 2 is voltage pickoff from the resistor. The voltage will vary depending upon throttle plate position (that's the center-tap).

Pin 3 is GROUND from the PCM (that's the other end of the resistor).

On the 4.7L engine:
Wire to Pin 1 is Orange - 18gage
Wire to Pin 2 is Brown with Orange stripe - 20gage
Wire to Pin 3 is Black with Light Blue stripe - 18gage

Note: The gound to the PCM from Pin 3 is shared with the MAP Sensor, which has its own +5vdc power source from the PCM.



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