engine

Throttle Position Sensor

for 2006 Dodge Viper 8.3L V10 · RWD

Difficulty

Easy

Time

1.0 h

Tools

Steps

✓Fact-checked. Built from OLP's spec database, then independently fact-checked line by line with every correction applied. Master-tech sign-off by Chris Hackleman is queued. Cross-check torque values against the factory manual, and stop if anything looks unsafe. How our data is made.

This procedure covers removal and replacement of the Throttle Position Sensor (TPS) on the 2005 Dodge Viper 8.3L V10 engine, including electrical connector disconnect and proper sensor installation.

Warnings

⚠Allow engine to cool completely before beginning work. The throttle body and surrounding components retain heat.

ℹ️The TPS is a non-adjustable sensor on this platform. Do not attempt to adjust sensor position during installation.

⚠Do not force the TPS during installation. The sensor must align with the throttle shaft tang and seat flush against the throttle body.

Tools required

T20 Torx driver or bitEssential

Ratchet with extension

Electrical contact cleaner

Torque wrench (inch-pound range)Essential

Shop towels

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Parts

Throttle Position Sensor × 1 — Mopar 5033991AA or equivalent
Throttle body gasket (if reusing throttle body) × 1 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Ensure engine is completely cool to the touch
Disconnect negative battery cable and wait 2 minutes for system discharge
Remove engine cover by pulling upward on front clips and lifting clear
Note throttle position sensor location on driver side of throttle body

Procedure

1
Access throttle position sensor
Locate the TPS on the driver side of the throttle body assembly. The sensor is mounted directly to the throttle body with two Torx screws and has a 3-wire electrical connector. Clear any hoses or wiring that may restrict access to the sensor connector.
2
Disconnect TPS electrical connector
Press the locking tab on the TPS connector and pull the connector straight away from the sensor. Do not pull on the wiring harness itself. Inspect connector terminals for corrosion or damage. If terminals appear dirty or corroded, clean with electrical contact cleaner and allow to dry.
3
Remove TPS mounting screws
Using a T20 Torx driver, remove the two screws securing the TPS to the throttle body. These screws are approximately 20mm long. Support the sensor as you remove the second screw to prevent it from falling into the engine bay.
Torque spec
TPS Screws3 Nm (2 lb-ft)
4
Remove throttle position sensor
Gently pull the TPS straight away from the throttle body. The sensor engages with a tang on the throttle shaft, so slight wiggling may be necessary. Do not twist or pry the sensor during removal as this may damage the throttle shaft.
5
Inspect throttle body mounting surface
Examine the TPS mounting surface on the throttle body for dirt, carbon buildup, or damage. Clean the surface with a shop towel if necessary. Inspect the throttle shaft tang for damage or excessive wear. The tang should be straight and free of burrs or deformation.
6
Prepare new throttle position sensor
Remove the new TPS from packaging and verify it matches the removed sensor in connector type and mounting hole spacing. Check that the internal tang slot is clean and free of debris. Do not apply any lubricant to the sensor or throttle shaft.
7
Install new TPS
Align the TPS with the throttle shaft tang, ensuring the internal slot in the sensor engages with the tang. The sensor should only fit in one orientation. Press the sensor gently against the throttle body until it seats flush. If the sensor does not seat easily, remove it and verify the tang is properly aligned with the sensor slot.
8
Install TPS mounting screws
Start both Torx screws by hand to ensure proper thread engagement. Tighten the screws in an alternating pattern to seat the sensor evenly. Using an inch-pound torque wrench, torque both screws to 2.0 Nm (18 lb-in). Do not overtighten as this may crack the sensor housing.
⚠The TPS housing is plastic and will crack if screws are overtightened. Use a calibrated torque wrench.
Torque spec
TPS Screws3 Nm (2 lb-ft)
9
Reconnect electrical connector
Align the TPS electrical connector with the sensor terminals and press firmly until the locking tab clicks into place. Gently tug on the connector to verify it is fully seated and locked.
10
Reinstall engine components
Reposition any hoses or wiring that were moved for access. Reinstall the engine cover by aligning the rear mounting points first, then pressing down on the front clips until they engage. Reconnect the negative battery cable.

Reassembly

Ensure all electrical connectors are fully seated and locked
Verify engine cover is properly secured at all mounting points
Double-check that no tools or shop towels were left in the engine bay

Verification

Turn ignition to ON position without starting engine. Check that MIL (check engine light) illuminates briefly then extinguishes, confirming TPS communication
Start engine and verify smooth idle with no throttle-related diagnostic codes
Slowly depress accelerator pedal while monitoring engine response. Engine should accelerate smoothly without hesitation or surging
Use a scan tool to verify TPS voltage reads approximately 0.5-1.0 volts at closed throttle and increases smoothly to 4.5-5.0 volts at wide open throttle
Test drive vehicle to confirm normal throttle response and verify no illuminated MIL or stored diagnostic codes