23488881 Crankshaft Position Sensor

Product Description

23488881

The 23488881 crankshaft position sensor is a precision inductive sensing component engineered to monitor crankshaft rotational speed and crank angle position for modern diesel & gasoline vehicles. Mounted on engine cylinder block or transmission bell housing, it captures real-time crankshaft position signals and transmits accurate pulse data to the ECU. Based on these signals, the ECU controls ignition timing and fuel injection sequence precisely, optimizing engine startup performance, combustion efficiency and lowering exhaust emission. It is a direct OE replacement spare part compatible with Volvo.

• OEM Direct Fit: Produced strictly per OE specification of part No.23488881. Identical original connector, mounting hole spacing and wire length, plug-and-play installation without any modification or extra adapter.

• High-precision Induction Chip: Adopts high-performance magnetic induction core, fast signal response and stable waveform output to guarantee accurate engine timing control under all driving conditions.

• Outstanding High & Low Temperature Resistance: Adopts high-grade anti-age plastic shell and internal insulating coating, stable working under drastic engine temperature fluctuation, long service life without signal distortion or loss.

• Anti-interference Circuit Design: Built-in shielding circuit and high-quality shielded harness, effectively resist electromagnetic interference from engine peripheral electric parts to ensure steady signal delivery to ECU under vibration environment.

• Strict Quality Control: Manufactured complying with IATF16949 auto industry standard. Every finished sensor passes full inspection including waveform testing, high-low temperature cycle test and vibration durability test before delivery.

• Response Sensitivity: Determines the sensor's capability to capture crankshaft tooth pulse signals. Standard design can identify target tooth variation instantly; aging or oil-contaminated sensor leads to delayed signal capture and hard start.

• Output Waveform: Good-condition inductive crank sensor outputs regular alternating AC waveform; defective unit generates disordered or intermittent waveform which triggers engine fault code.

• Operating Temperature Adaptability: Normal working range covers full engine ambient range; inferior products lose signal accuracy under extreme cold or high engine heat.

• Service Life: Standard service mileage ranges from 80,000~150,000 KM. Service life is affected by engine oil leakage, high engine temperature and dust invasion inside sensor housing.

• Coil Internal Resistance: Fixed standard coil resistance as per OE design, abnormal resistance value indicates internal coil short/open circuit and sensor failure.

• Connector:VW/Audi 6-pin connector with weather-sealed terminal cavities.

•  Magnetic Induction Head: Built-in permanent magnet and induction coil to induce alternating current signal from crank signal wheel teeth rotation.

• Internal Control PCB: Miniature circuit board filters raw induction signal and stabilizes output waveform for ECU recognition.

• Integrated Plastic Housing: High-temperature resistant PA66 shell with anti-oil coating to prevent engine oil and moisture corrosion.

• 3-Pin Electrical Connector: Standard OEM plastic connector with tin-plated copper terminals, waterproof sealing ring to avoid water ingress and terminal oxidation.

• Shielded Harness: Internal shielding layer eliminates outside electromagnetic interference from alternator and ignition coil.

This sensor is a direct replacement for the following OE numbers:

81MPP31-02, 10R054538, 23488881

• Always disconnect vehicle battery before installation to avoid ECU circuit damage.

• Clean mounting surface of engine block to remove dirt and residual engine oil for flat installation.

• Never scratch the front induction probe during installation; collision will damage internal magnet and coil.

• After installation, use OBD diagnostic scanner to clear related fault codes and test engine cold & hot startup condition.

• Replace the sensor when encountering hard engine start, intermittent stall, crank no-start or illuminated engine malfunction indicator lamp.

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