The position of the piston in the engine cylinder is decisive in determining the moment of fuel injection into the combustion chamber. Since the pistons are rigidly connected to the crankshaft via the connecting rods, the crankshaft 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 crankshaft angle sensor.
2. Measure the resistance between pins 1 and 2 of the sensor connector. Resistance: 0.65–1.00 kOhm.
3. If the sensor resistance differs from the required value, replace the sensor. The gap between the rotor and the crankshaft angle sensor: 0.5–1.5 mm.
4. Install the sensor, observing the tightening torque. Tightening torque: 4–6 Nm.