214-4697 Caterpillar Fuel Actuator Position Sensor Assembly (Sensor GP-Position) is primarily utilized in electronically controlled fuel injection engines such as the C6.4, C7, and C9. It monitors the stroke of the fuel pump/actuator and serves as a critical feedback component within the electronic fuel control system. I. Core Parameters and Functions

Part Number: 214-4697 (2144697)

Official Name: Sensor GP-Position (Position Sensor Assembly)

System: Engine Electronic Fuel Injection System

Function: Detects the actual position/stroke of the fuel actuator (fuel pump/governor) and feeds a PWM signal back to the ECM to achieve precise fuel injection quantity and timing control.

Electrical: 3-pin sealed connector; 5V reference voltage; PWM output (approx. 500Hz); Operating voltage: 9–32V.

Protection: IP67 rated; vibration-resistant and oil-resistant; suitable for the harsh environments typical of heavy construction machinery.

Weight: Approx. 0.15–0.2 kg.

II. Main Applicable Models (Most Common)

Excavators: 320D, 323D, 324D, 325D, 329D, 330D, 336D Series

Engines: C6.4, C7, C9, C11, C13 Electronic Fuel Injection Engines

Others: Wheel Loaders (950H/962H/966H), Dozers (D6R/D7R), etc.

III. Fault Symptoms and Diagnosis

Typical Symptoms

Insufficient engine power, sluggish acceleration, unstable idle speed.

Abnormally high fuel consumption; emission of black or white smoke.

Difficulty with cold starts; engine prone to stalling.

Generation of fault codes related to the position sensor.

Common Fault Codes (CAT)

2201: Governor Actuator Feedback Sensor — Open Circuit / Short Circuit

2202: Feedback Sensor — Short to Ground

2301: Feedback Signal — Unstable

2302: Feedback Signal — Excessive Deviation

Quick Checks

Measure the 5V power supply to verify it is normal.

Measure the PWM signal (approx. 45–55% duty cycle at idle).

Inspect the connector for corrosion or looseness.