Throttle Position Sensor: Service and Repair

Throttle Position Sensor:

NOTE: Since Throttle Position Sensor (TPS) configurations can be mounted interchangeably, be sure to order the correct one for your engine with identical part number of the one being replaced.

REMOVAL:

- Disconnect negative battery terminal.
- Remove air cleaner assembly, extension (spacer), and gasket.
- Disconnect electrical connectors.
- Disconnect negative battery terminal.
- Remove EGR attaching bolts.
- Remove EGR and gasket.
- Remove TPS attaching screw assemblies.
- Remove TPS from throttle body assembly.
NOTE: The TPS is an electrical component and must not be soaked in any liquid cleaner or solvent, as damage may result.

INSTALLATION:

- With throttle valve in normally closed position, install TPS on throttle shaft and rotate clockwise to align mounting hole.
- Install the two attaching screw assemblies. Tighten screw assemblies to 2.0 Nm (18.0 lb-in).
- Install electrical connector to TPS.
- Check for TPS output as follows:
- Connect an ALDL scanner to read TPS output voltage.
- With ignition "ON" and engine stopped, TPS voltage should be less than 1.25 volts. If more than 1.25 volts, replace TPS.
- Install EGR valve and gasket.
- Install EGR attaching bolts. Tighten to 30 Nm (22 lb.ft.).
- Connect negative battery terminal.
- Install air cleaner assembly, extension (spacer), and gasket.