General information
The principle of operation of the crankshaft position sensor is based on the Hall effect. The sensor determines the position of the crankshaft cranks (piston position) for all cylinders and converts this data into signals (impulses).
Based on these signals, the electronic engine control unit determines the engine speed (turns) and corrects the moment when the nozzle opens and the duration of its open state, as well as the ignition timing.
- Rated sensor supply voltage: e.g. aircraft networks
- Voltage (amplitude) sensor signal: 0-5V
- Gap between rotor and sensor tip: 0.5-1.8mm
Engines 2.0 l / 2.4 l. | Engine 2.7 l. |
Troubleshooting Guide
1. If sudden shocks are felt while driving or the engine suddenly stalls, then try moving the crankshaft position sensor connector. If the engine stalls, then there may be a bad connection in the sensor connector.
Engines 2.0 l / 2.4 l.
2. If the sensor output is 0 rpm while the starter is cranking and the engine does not start, then the crankshaft position sensor may be defective, the timing belt is broken, or the ignition system is faulty.
3. If it is possible to run the engine at idle even when the crankshaft position sensor readings differ from the nominal value, then one of the following problems is usually the cause (not connected to the sensor):
- A) Faulty coolant temperature sensor.
- V) Incorrect adjustment of the base idle speed of the engine.
4. The engine can run without crankshaft position sensor signal, but the engine cannot be restarted. Data on the TDC position determined by the sensor is stored in memory until the next attempt to start the engine.
Testing with a tester
1. Connect the tachometer (checking the operation of the ignition coil using a tachometer) and make sure that the speed of the engine crankshaft when scrolling with the starter coincides with the readings of the tester.
2. Perform a crankshaft position sensor test under the following conditions: engine idling, wide throttle position switch in position "ON".
Table. Rated values.
Coolant temperature | Rated value (rpm) |
At -20°С | 1500-1700 |
At 0°C | 1350-5550 |
At 20°C | 1200-1400 |
At 40°C | 1000-1200 |
At 80°C | Idle speed |