Camshaft & Crankshaft Sensors
The camshaft sensor monitors the position of the camshaft to allow for correct ignition timing. The crankshaft sensor detects the position of the crankshaft allowing the ECU to calculate its position in relation to the pistons in the engine.
Sensor Types
There are two types of sensor, an Inductive (magnetic) or Hall effect sensor and both operate by outputting a voltage when close to metal – the frequency of this signal is detected by the ECU.
Inductive sensors use a magnet to pick up a signal from the engine cranking and are either mounted in the block of the engine near the flywheel, or close to the crankshaft itself. The sensor picks up notches on a spinning disk, reluctor wheel or the crankshaft. When each notch passes it causes a change in the magnetic field, sending an alternating current signal to the ECU.
Hall Effect sensors are mounted in the same place as the inductive sensor and respond to the same notches, though instead of an analogue AC signal, it creates a digital signal, either on or off, as the notches pass the sensor. They are also known as crank sensors, speed sensors, RPM sensors or flywheel sensors.
General Fitting Advice
1. Camshaft sensor failure is commonly caused by damage from oil contamination. Ensure any oil leaks are addressed before replacing the sensor.
2. Carefully remove the old sensor.
3. Oil the ‘O’ ring of the new sensor.
4. Correct positioning of the new sensor is critical, camshaft sensors often feature slotted mounting holes and/or locating pins so ensure that any locating pins are correctly seated before fully slotting into place. Failure to do so can shear off the locating pin causing misalignment of the sensor and incorrect readings.
5. Reconnect wiring and reset the ECU if needed.
Beckermann Camshaft and Crankshaft Sensors are engineered to original equipment standards and 100% tested for long lasting, reliable performance. Purchase Beckermann Engine Managment Sensors here - Beckermann Sensors