Where is the Pentium b70 speed sensor?

Pentium b70 speed sensor is usually installed on the front suspension of a car. The function of engine speed sensor is to detect engine speed, determine crankshaft position, detect piston top dead center signal and crankshaft angle signal, and transmit the detected signals to ECU for controlling ignition timing and fuel injection timing. On the gearbox clutch housing, at the front or rear end of the crankshaft, the engine speed is measured by the pulse signal speed sensor.

Speed sensor function

Engine speed sensors can be divided into three types according to the principle that sensors generate signals: magnetic induction type, photoelectric type and Hall type. Electromagnetic induction speed sensor is divided into 2-wire system or 3-wire system, and the common Hall speed sensor is 3-wire system. Among them, two lines are power supply line and AC signal line respectively, and the third line of the three lines is AC signal shielding line, which is connected to the ground.