HomeEmission Control > SensorsStandard Ignition TH331 Throttle Position Sensor
Part #: TH331

Standard Ignition TH331 Throttle Position Sensor

22 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Isuzu, Amigo, Pickup, Rodeo, Trooper, and Impulse
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Overview of Standard Ignition TH331 Throttle Position Sensor

The Standard Ignition TH331 throttle position sensor is designed for precise throttle monitoring in select Isuzu vehicles. This sensor ensures accurate throttle input readings, contributing to optimal engine performance and emission control.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Type: Plug in
  • Terminal Gender: Male
  • Terminal Quantity: 3
  • Terminal Type: Blade terminals

Detailed Product Description

The TH331 throttle position sensor from Standard Ignition features a single female plug-in connector with three male blade terminals. This configuration allows for secure and reliable electrical connections, minimizing the risk of signal loss or interference. The sensor is engineered to provide consistent throttle position data to the engine control unit (ECU), which is critical for fuel injection timing and emission regulation. Compatible with Isuzu Amigo, Impulse, Pickup, Rodeo, and Trooper models, this sensor meets the specific electrical and mechanical requirements of these vehicles.

Compatible Vehicles and Common Applications

This throttle position sensor is compatible with the following Isuzu models:

  • Isuzu Amigo
  • Isuzu Impulse
  • Isuzu Pickup
  • Isuzu Rodeo
  • Isuzu Trooper

It is commonly used to address issues such as:

  • Erratic or unstable idle speed
  • Poor throttle response or hesitation
  • Check engine light related to throttle position sensor faults
  • Reduced fuel efficiency due to incorrect throttle data
  • Engine stalling or surging during acceleration

Installation Notes and Tips

When installing the Standard Ignition TH331 throttle position sensor, ensure the vehicle’s ignition is off and the battery is disconnected to prevent electrical shorts. The sensor’s female plug-in connector should align securely with the vehicle’s wiring harness. Verify that the three male blade terminals are clean and free of corrosion before connection. After installation, it is recommended to clear any diagnostic trouble codes and perform a throttle position sensor calibration if required by the vehicle’s service manual.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The TH331 throttle position sensor undergoes rigorous quality control testing to maintain consistent functionality. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use conditions.

BrandStandard Ignition
Part NumberTH331
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 22 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
1992IsuzuAmigoN/ACompatible with vehicles equipped with Federal Emissions.
1992IsuzuPickup2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1992IsuzuRodeo2.6LL4N/A
1991IsuzuAmigo2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1991IsuzuPickup2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1991IsuzuRodeo2.6LL4N/A
1991IsuzuTrooperManual2.6LL4N/A
1990IsuzuAmigoN/ACompatible with vehicles equipped with Federal Emissions.
1990IsuzuPickupManual2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1990IsuzuTrooperManual2.6LL4N/A
1989IsuzuAmigo2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1989IsuzuImpulseManual2.3LL4N/A
1989IsuzuPickupManual2.6LL4N/ACompatible with vehicles equipped with Federal Emissions.
1989IsuzuTrooperManual2.6LL4N/A
1988IsuzuImpulseManual2.3LL4N/A
1988IsuzuPickupManual2.6LL4N/A
1988IsuzuTrooperManual2.6LL4N/A
1987IsuzuImpulse1.9LL4N/A
1986IsuzuImpulse1.9LL4N/A
1985IsuzuImpulse1.9LL4N/A
1984IsuzuImpulse1.9LL4N/A
1983IsuzuImpulse1.9LL4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

141-7005158-0505191460192-16683200-14245S520171-770375343894240818094240818EC3216ECC1437SS10345TPS4102

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.