Pic. 2.207. Crank Angle Sensor: 1 – synchronization rotor; 2 - crankshaft rotation angle sensor; 3 - synchronization rotor (720 ° CA); 4 - missing teeth
The crankshaft timing rotor has 34 teeth, 2 teeth are missing. Crank angle sensor (pic. 2.207) outputs crankshaft rotation signals every 10°, the missing teeth are used to determine top dead center.