Throttle Position Sensor – Grey CW Rotation 8mm D-Shaft

Strategic Engine Feedback: TPS Grey CW (8mm D-Shaft)

The Throttle Position Sensor (TPS) is the primary input for the ECU’s transient fueling and load calculations. The TPS – Grey CW Rotation 8mm D-Shaft is a precision-calibrated instrument designed to convert throttle angle into a linear 0-5V signal. Featuring a Clockwise (CW) rotation sweep and a standard 8mm D-shaft interface, this sensor is the definitive choice for aftermarket throttle bodies used in LS-swap, RB26, and 2JZ configurations. Providing your standalone ECU integration with a high-fidelity throttle signal is foundational for achieving smooth drivability and world-class detonation protection.

Engineering Principles: Linear Potentiometer Resolution

This sensor functions as a high-durability potentiometric divider, where the rotational movement of the 8mm D-shaft directly alters the output voltage. This Analogue-to-Digital interface allows the ECU to identify throttle position with micro-degree accuracy. The grey housing signifies a specific internal resistance profile optimized for modern standalone ECU integration, ensuring that the 5V reference signal remains stable. This is critical for fuel map calibration, as the ECU uses the rate of throttle change (TPS Delta) to command acceleration enrichment, preventing the “stumble” often associated with poorly calibrated throttle sensors.

Operational Benefits for Professional Tuning

For the professional tuner, the Grey CW TPS provides the consistency needed for complex closed-loop boost control strategies. By knowing the exact throttle angle, the ECU can adjust boost targets based on driver demand, ensuring that full power is only delivered when the throttle is 100% open. In high-horsepower street cars, this sensor is vital for traction control, as it provides the base signal for all torque-request maps. The robust internal construction ensures that the sensor maintains its linearity even after millions of cycles, providing a reliable timing reference cell-by-cell throughout the entire engine map.

Fitment and Component Integration

This sensor suits 8mm D-shaft throttle spindles and is designed for clockwise rotation. The kit is a comprehensive solution for harness integration, as it includes the throttle position sensor, opposing connector, and 3 pins. This allows the builder to create a secure, weatherproof electrical path directly to the ECU. It is compatible with all Haltech Elite and Nexus ECUs, as well as most standalone systems. During installation, it is important to verify the sensor’s voltage at 0% and 100% throttle within the software to ensure the full 0-5V range is utilized for maximum resolution.

Technical Specifications Table

Summary & Includes

The Grey CW TPS is the professional prerequisite for high-fidelity throttle feedback. Includes: 1 x Grey Clockwise TPS, 1 x Opposing Connector, and 3 x Crimp Pins. Note: Designed specifically for 8mm D-shaft spindles requiring a clockwise sweep.