Standard Ignition TH43 Throttle Position Sensor

Throttle Position Sensor for OE-Style Output

Standard Ignition TH43 is a throttle position sensor built for direct replacement service on select Chevrolet and Pontiac applications. It uses a fixed installed output to match OE calibration, helping restore accurate throttle signal feedback for drivability and emission control performance.

Key Features

• Plug-in connector design with 1 connector, 3 terminals, and female bullet terminals
• Flexible polyimide film or ceramic-based circuit construction for dimensional stability
• Noble metal contact materials for low resistance and long service life
• Integral rotor bearings and return springs for straightforward installation
• End-of-line tested with thousands of data points to verify output voltage
• Standard Ignition TH43 throttle position sensor for emission control repair

Detailed Description

The TH43 throttle position sensor is engineered to deliver a stable throttle signal for vehicles that rely on precise throttle angle input. By maintaining a specific installed output rather than using an adjustable consolidated design, it supports consistent sensor calibration after replacement. This matters on applications such as the 1985-1986 Chevrolet Monte Carlo and 1985 Chevrolet Caprice, where accurate TPS feedback helps the engine control system respond correctly to throttle movement. Standard Ignition TH43 is also listed for 1985 Chevrolet Celebrity, El Camino, Impala, and 1985 Pontiac 6000 and Parisienne.

This part cross-references Four Seasons 75512 for the same application.

What It Helps Fix

• Erratic throttle signal output
• Hesitation during acceleration
• Rough idle caused by incorrect throttle position feedback
• Check engine light concerns related to TPS signal faults
• Driveability issues on Chevrolet Monte Carlo, Caprice, and related GM applications

Installation Notes and Tips

Verify connector style, terminal count, and mounting alignment before installation. The plug-in design and integral rotor bearings support a direct replacement process, but the sensor should be installed to the correct OE-style output specification for proper operation. Confirm fitment for your exact year, make, and model before ordering Standard Ignition TH43.

Quality Assurance

Standard Ignition manufactures emission control components with process control from individual parts through finished product. Each TH43 sensor is tested at the end of the line to validate voltage output and help ensure reliable operation after installation.