How to detect the lack of high voltage in automobile magnetic pulse ignition

When carrying out fault diagnosis, first check the connecting wire of the crankshaft position sensor to see if there is any loose connection; Whether there is an open circuit fault. Never disassemble the distributor and crankshaft position sensor blindly without determining that the crankshaft position sensor itself is faulty.

Common faults of pulse crankshaft position sensor are:

Signal generator induction coil short circuit, open circuit; Wear and oscillation of rotor shaft; The motion of the induction coil and the magnetic core assembly makes the air gap between the rotor and the magnetic head inappropriate, which weakens the signal or does not produce the signal; The teeth of the timing rotor are full of dirt, which makes the output signal abnormal and inaccurate.