Standard Ignition TH387 Throttle Position Sensor

Throttle Position Sensor for Saturn SC1 SC2 SL SL1 SL2 SW2

The Standard Ignition TH387 throttle position sensor is built for direct replacement service on select Saturn models from 2000-2002. It uses a fixed installed output to match OE calibration, helping restore accurate throttle signal feedback for smooth drivability and consistent engine management.

Key Features

• Black throttle position sensor with a rectangular female connector
• 3 blade terminals with plug-in connection
• 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

Detailed Description

Standard Ignition TH387 is a throttle position sensor engineered for OE-style output consistency rather than adjustable consolidated design. That matters when servicing throttle signal issues on a 2000-2002 Saturn SC1, SC2, SL, SL1, SL2, or SW2, where accurate voltage feedback is critical for proper fuel and ignition control. The sensor’s stable substrate construction helps resist electrical drift, while the low-resistance contact materials support dependable operation over time. This part cross-references Four Seasons 75439 for the same application.

Vehicle Fitment

• Fits 2000-2002 Saturn SC1, N/A
• Fits 2000-2002 Saturn SC2, N/A
• Fits 2000-2002 Saturn SL, N/A
• Fits 2000-2002 Saturn SL1, N/A
• Fits 2000-2002 Saturn SL2, N/A
• Fits 2000-2001 Saturn SW2, N/A

What It Helps Fix

• Throttle response that feels inconsistent or delayed
• Erratic idle caused by incorrect throttle signal output
• Check engine light concerns related to throttle position sensor performance
• Hesitation during acceleration from inaccurate voltage readings
• Driveability problems tied to worn sensor contacts or signal drift

Installation Notes and Tips

Verify connector style, terminal count, and throttle body mounting before installation. The TH387 uses a rectangular female plug-in connector with 3 male blade terminals, and no gasket or screws are listed in the product data. After installation, clear any stored codes and confirm throttle signal output with a scan tool or multimeter.

Quality Assurance

Standard Ignition maintains complete quality control through the manufacturing process, from component selection to finished product. Each TH387 throttle position sensor is tested at the end of the line to confirm output voltage performance before it leaves the factory.