Standard Ignition TH331 Throttle Position Sensor

Throttle Position Sensor for Isuzu Applications

Standard Ignition TH331 is a throttle position sensor built for direct-fit service on select Isuzu vehicles. It uses a female plug-in connector with three male blade terminals for a straightforward electrical connection and accurate throttle signal input.

Compatible With 1983-1992 Isuzu Impulse, 1988-1992 Isuzu Pickup, 1988-1991 Isuzu Trooper, 1991-1992 Isuzu Rodeo, and 1989-1992 Isuzu Amigo with Federal Emissions where noted.

Key Features

• Throttle position sensor for emission control system service
• Female connector with plug-in design
• 3 male blade terminals for OE-style electrical interface
• Direct replacement format for select Isuzu throttle bodies
• Standard Ignition TH331 for application matching and catalog lookup

Detailed Description

The Standard Ignition TH331 monitors throttle angle and sends the signal needed for proper fuel and drivability control. On Isuzu Impulse, Pickup, Trooper, Rodeo, and Amigo applications, a worn or inconsistent TPS can affect throttle response and engine management. This part cross-references EC3216 and TPS4102 for the same application.

Use TH331 when servicing a throttle position sensor on 1983-1992 Isuzu Impulse, 1988-1992 Isuzu Pickup, 1988-1991 Isuzu Trooper, 1991-1992 Isuzu Rodeo, or 1989-1992 Isuzu Amigo. The connector style and terminal layout support proper fitment on the listed vehicles.

What It Helps Fix

• Erratic or delayed throttle response
• Rough idle related to incorrect throttle signal input
• Hesitation during acceleration
• Check engine light concerns tied to throttle position feedback
• Driveability issues caused by a worn TPS

Installation Notes

Verify connector style, terminal count, and vehicle emissions configuration before installation. Confirm the throttle body mounting location and compare the original sensor to Standard Ignition TH331 before replacement. After installation, clear diagnostic codes and check throttle signal output with a scan tool or multimeter.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical and engine management components, including throttle position sensors for import applications. TH331 is cataloged for direct application matching on the listed Isuzu models.