DA1647 Throttle Position Sensor (TPS) Potentiometer – Discovery I / Range Rover Classic

Restore smooth throttle response and proper fuel management with this TPS Throttle Position Sensor Potentiometer (Part No. DA1647). A failing TPS can cause erratic idle, hesitation, poor shifting (on automatic models), and incorrect air-fuel mixture signals sent to the ECU. This replacement unit restores accurate throttle angle feedback to ensure optimal drivability.

Designed as a direct-fit replacement, the sensor installs easily on the throttle body and immediately improves throttle accuracy and engine performance on older Rover V8 systems.

Fits:

• Discovery I (1994–1999)

• Range Rover Classic (1987–1995)

Install tip: After installation, verify the sensor sits correctly and ensure smooth, uninterrupted movement through the throttle range.*

Supersession Part Numbers

No supersessions found.

FAQ

What symptoms indicate a bad TPS?
Hesitation, poor idle, surging, rough acceleration, or erratic shifts are common signs.

Is calibration required?
Most units install without calibration, but ensuring proper alignment is important.

Does this fit 3.9L and 4.2L V8 engines?
Yes — fits all Discovery I and Range Rover Classic V8 variants equipped with this style TPS.

Part Number: DA1647

Free Shipping Available to the Lower 48