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Go Back   Fun In B.C. > All about your Ride > Dodge Talk

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Old 07-25-2011, 02:13 AM
Maelthra Maelthra is offline
Not a Newbie
Join Date: Sep 2006
Location: Hope
Posts: 696
Maelthra bad newbie
Reputation: 9
Installing a Potentiometer in place of TPS

I had the Throttle Position sensor fail in my 92 Cummins last week in Kelowna, driving back to Hope in Drive is defiantly not fun or economical. I priced out a new TPS from Lordco ($450ish) and Dodge ($700ish) and then was directed to this link on DTR
(Pictures in the link)

Everything was installed in about an hour, and right now I have the OD shift set at approx. 95km/h.

Parts needed:

Potentiometer (Rheostat) from The Source ($7.99)
9-pin Male D-type crimp connector from The Source ($2.99 I think)
approx. 4' of wire
Soldiering gun

I don't have any pictures yet, but the install was very simple. on the POT there were three tabs, and they correspond to the three wires from the TPS plug; the outer wires are the power and ground, and the center wire is the Reference Voltage. The D-type connector's pins slid directly into the factory plug with a snug fit, and after shrink tubing them gave plenty of clearance.

I mounted the POT under the dash beside my brake controller using an old switch bracket I had lying around, and after fiddling with it to dial in the shift point I have found it to be out of the way and away from accidental bumping. So far I am happy with the mod, I don't have to play with the O/D switch on the dash when driving at 80km/h and I no longer have to lift the throttle for the transmission to shift into O/D.
[1983 Dodge W350][360, 315/75R16s, 6" lift]
[1992 Dodge W250][CTD - Auto - stock as stock is]
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