The crankshaft sensor is broken and the car can no longer be driven. After the crankshaft sensor is damaged, the rotation angle of the crankshaft cannot be confirmed, and the trip computer cannot receive the signal from the crankshaft position sensor. In order to protect the engine, no fuel injection and no ignition are performed.
Crankshaft position sensor is one of the most important sensors in the engine electronic control system. It provides the ignition timing and the signal to confirm the position of the crankshaft, and is used to detect the top dead center of the piston, the crankshaft angle and the engine speed. The structure adopted by the crankshaft position sensor varies with different models, and can be divided into three categories: magnetic pulse type, photoelectric type and Hall type. It is usually installed on the front end of the crankshaft, the front end of the camshaft, on the flywheel or in the distributor.
The bad crankshaft sensor mainly has the following symptoms:
1. The fault light is on;
2. The engine can continue to work by relying on the camshaft position sensor, but the starting time may be relatively long, and the cruise and exhaust braking systems cannot work normally, and the engine will vibrate and emit white smoke, but the power performance has not changed significantly. normal response;
3. Possible fault codes;
4. The signal panel is abnormal.
Post time: Apr-23-2022