Description
Product Overview
The crankshaft position sensor is installed in the engine block. It captures the rotation signal of the crankshaft ring through electromagnetic induction and provides real-time feedback on the engine speed and piston position. The ECU uses this signal to precisely control the fuel injection timing and ignition timing. After long-term exposure to high cabin temperatures, moisture in the engine oil, and dust erosion, the internal sensing elements age and the seals leak, resulting in signal loss, weak starting, engine stalling during driving, and limited power output. This product is a complete integrated sensor assembly. It undergoes comprehensive testing for signal accuracy, waterproof sealing, and temperature stability at all temperatures during factory production. The entire assembly can be replaced without the need for secondary calibration. It is suitable for light-duty diesel trucks, light-duty construction machinery, and diesel-powered passenger vehicles for maintenance.
Unique features of this product
Side-mounted integrated flange mounting base, stable and secure installation without loosening
Side-edge integrated metal flange base with fixed holes, assembly screws directly lock and position, the sensor does not shift under long-term vehicle vibration, the gap between the sensing probe and the gear ring is stable, and the signal collection is without drift.
Multi-layer ring-shaped waterproof and dust-proof sealing ring in the middle section, preventing leakage of engine oil and moisture
Sealing ring with multiple thickened rubber layers in the middle section of the probe, multi-layer barriers against the intrusion of engine oil, high-temperature water vapor, and dust into the internal circuit, eliminating oil contamination that corrodes the sensing chip, significantly reducing the probability of sensor water ingress failure.
Longened precision sensing probe, sensitive signal capture and stable linearity
The front end of the extended sensing rod is equipped with a high-precision electromagnetic sensing element, matching the distance to the crankshaft signal gear precisely. The signal feedback is continuous and without interruption under low-speed and high-speed operating conditions, ensuring precise fuel injection timing.
Integrated black waterproof and electrical control plug, stable signal transmission against electromagnetic interference
The tail-end upright injection molded waterproof connector, with a built-in locking clip and waterproof rubber core, isolates the electromagnetic interference of the cabin wiring, preventing oxidation and false connection of the pins during vehicle vibration, and ensuring no delay or distortion in the transmission of the rotational signal.
Overall oil-resistant and high-temperature plastic housing, suitable for extreme cabin conditions
The shell is made of oil-resistant modified engineering plastic, capable of withstanding long-term high temperatures of the engine and corrosion by diesel engine oil. It is less likely to crack, age, or deform in alternating cold and hot environments, and has a longer service life. Applicable scenarios
This product is suitable for light-duty freight diesel vehicles with electronic control diesel systems, small wheeled construction machinery, and light-duty diesel passenger cars. It is applicable for urban road transportation, light-load operations at construction sites, and maintenance of small-sized diesel engine electronic control systems in outdoor environments with high temperatures, humidity, and dust.
Product Basic Parameters
Product Name: Crankshaft Position Sensor
Part Number: 23731-EC01A
Main Material: Oil-resistant and high-temperature-resistant engineering plastic housing, built-in high-precision electromagnetic induction chip, multi-layer rubber waterproof sealing ring, metal mounting flange
Structural Feature: Side-mounted flange fixed base, multiple ring-shaped waterproof sealing rings, extended sensing probe, snap-lock waterproof electronic control plug
Application Conditions: Continuous light / medium-heavy load, alternation of engine compartment high/low temperatures, outdoor high-dust small-sized electronic control diesel engines
Product Status: New and complete sensor assembly, factory completed with signal accuracy, waterproof sealingity, and high/low temperature aging comprehensive testing
Packaging: Independent shock-proof hard packaging, protective barriers at both ends of the sensing probe and the electronic control plug to prevent磕碰， supports single-piece and multi-piece batch purchases， and is compatible with cross-border small-sized logistics.
