The position of the piston in the engine cylinder is decisive in determining the timing of fuel injection into the combustion chamber. Since the pistons are rigidly connected to the crankshaft through the connecting rods, the crank angle sensor provides the control unit with information regarding the position of all pistons and the crankshaft speed, and this important input variable is transmitted to the ECU.
Examination
1. Disconnect the connector from the crank angle sensor.
2. Measure the resistance between pins 1 and 2 of the sensor connector. Resistance: 0.65-1.00 kΩ.
3. If the resistance of the sensor differs from the required one, replace the sensor. Gap between rotor and crankshaft angle sensor: 0.5–1.5 mm.
4. Install the sensor, observing the tightening torque. Tightening torque: 4–6 Nm.