1996 Nissan Pickup 4 Cylinder Throttle Position Sensor Replacement Instructions

Throttle position sensor and switch problems are common on the 1996 Nissan pickup. A failed sensor commonly sets either a TPS- or transmission-related code. A more dependable, updated sensor is available for the 1996 Nissan truck. The sensor has two plugs: brown for the sensor and gray for the switch. The TPS is a potentiometer. It signals the computer with a varying voltage as the throttle is opened. The computer uses the amount of throttle opening and the speed at which it is opened to regulate fuel injection on time, as well as ignition timing.

Instructions

Removal

1

Remove the two nuts on the top of the air cleaner using a socket and a ratchet. Lift the air cleaner off the throttle body. Locate the TPS on the passenger side of the throttle body opposite the linkage.

2

Unplug the two electrical connectors on the sensor.

3

Remove the two screws securing the sensor to the throttle body using a torx bit driver.

Installation

4

Hold the new TPS next to its intended mounted position. Notice the tang on the throttle body over which the sensor will be positioned. The corresponding tang on the rear of the sensor must be under the tang on the throttle body so when the throttle is opened, this tang rotates the sensor. You'll have to rotate the sensor slightly to insert the sensor tang under the one on the throttle body. Once the sensor is mounted correctly, rotate it to install the two retaining screws. Do not tighten the screws to the point that the sensor cant be rotated. You'll need to rotate the sensor slightly to adjust it before tightening.

5

Plug the two electrical plugs into the sensor. Place the red voltmeter wire piercing probe on the middle wire in the brown plug. This is the sensor signal wire. Connect the black voltmeter lead on a good engine ground.

6

Turn the ignition key on without starting the truck. Observe the voltage. Rotate the sensor until it displays 0.4 to 0.5 volts. Tighten the sensor screws to hold it in position. Remove the voltmeter. Install the air cleaner.