What is the function of crankshaft position in an engine?
Crankshaft positioning means monitoring the movement of the position of crankshaft. This functioning is done either by Crankshaft position sensor or an Crankshaft hall sensor or by both in some Engine managements.
What kind of sensor is on the crankshaft?
The crankshaft position sensor (CKP sensor or CPS) is one of several sensors that keep your engine running smoothly. It measures the position of the crankshaft (for which it is sometimes called the crank angle sensor or CAS), as well as the rotational speed of the crankshaft (for which it is sometimes called the engine speed sensor, ESS.
How does a crankshaft position sensor work in an ECU?
That produces a pattern of on and off switches in the Hall Sensor that the ECU can interpret as the crankshaft speed. The faster the sensor is turning on and off, the faster the crankshaft is spinning. While these Hall effect sensors give a digital signal, some crankshaft position sensors produce an analog signal.
How does a Hall effect sensor work on a crankshaft?
A Hall effect sensor produces electricity in when it is exposed to a magnetic field. In a crankshaft position sensor, a toothed wheel, spinning with the crankshaft, disrupts the magnetic field.
Where is the crankshaft position sensor located on a car?
Depending on the design of the manufacturer, the sensor is mainly positioned near the flywheel, engine block, or crankshaft. An electric pulse chart is created as the crankshaft spins and this alters the speed of the engine.
How to change the crankshaft position on a Mercedes Benz?
Unplug the electrical connector from the CPS sensor. Squeeze the connector and pull it away from the CPS sensor. This opens in a new window. Remove bolt. Remove the crankshaft position sensor. You will have either an E8 or E10 bolt that holds the CPS sensor in place.
What happens if the crankshaft sensor does not work?
If the crankshaft position sensor fails, it will not send information about the position of the crankshaft and speed of the engine RPMs to the ECU. As a result, the ECU doesn’t know when to send the spark plugs and how to adjust the fuel mixture. This can cause your car to stall or hesitate to start.
What are fault codes related to crankshaft position?
When the CPS is malfunctioning, the engine control module will trigger a fault code if it does not receive any signal from the CPS. Fault codes related to the crankshaft position sensor are: P0385, P0386, P0387, P0388 P0389 are related to B Circuit. P1336 usually related to a wiring problem, air gap, flywheel ring gear damaged, CPS sensor.