Why plugging in the crankshaft position sensor has an impact on the oil pump

How the crankshaft position sensor works:

There are three main types: magnetoelectric induction, Hall effect, and photoelectric. The three types work on the following principles:

1. Magnetoelectric induction:

The magnetoelectric inductive speed sensor and the crankshaft position sensor are installed in the distributor in two layers. The sensor consists of a permanent magnet induction detection coil and a rotor (timing rotor and speed rotor) that rotates with the distributor shaft. Timing rotor has.

One, two, or four teeth, etc., the speed rotor is 24 teeth. The permanent magnet induction detection coil is fixed on the distributor body. If the speed sensor signal and the crankshaft position sensor signal are known, as well as the working sequence of each cylinder, the crankshaft position of each cylinder can be known.

Rotor signal panels for magnetoelectric inductive speed sensors and crankshaft position sensors can also be mounted on crankshafts or camshafts.

2. Hall effect:

Hall-effect speed sensors and crankshaft position sensors are signal generators that utilize the Hall effect. The Hall signal generator is installed in the distributor, coaxial with the distributor head, and is fixed on the distributor panel by the encapsulated Hall chip and a permanent magnet. The number of notches on the trigger impeller is the same as the number of engine cylinders.

When the blade on the trigger impeller enters between the permanent magnet and the Hall element, the magnetic field of the Hall trigger is bypassed by the blade, and the Hall voltage is not generated, and the sensor has no output signal; When the notched part on the trigger impeller enters between the permanent magnet and the Hall element, the magnetic field lines enter the Hall element, the Hall voltage rises, and the sensor outputs a voltage signal.

3. Photoelectric type:

Photoelectric crankshaft position sensors are generally installed in distributors and consist of a signal generator and a signal disc with light holes. The signal panel rotates together with the distributor shaft photoelectric type, and there are 360 lithography gaps in the outer ring of the signal panel, which produces a signal with a crankshaft rotation angle of 1 °; Slightly inward, there are 6 orifices evenly spaced 60 ° apart, generating a signal of a 120° angle of rotation of the crankshaft, one of which is wider to generate a signal relative to the top dead center of the 1st cylinder. The signal generator is mounted on a distributor housing and consists of two light-emitting diodes, two photodiodes and a circuit.

The light-emitting diode is facing the photodiode. The signal disk is located between the light-emitting diode and the photodiode, and because there is a light hole on the signal disk, the phenomenon of alternating light transmission and shading occurs. When the beam of the light-emitting diode hits the photodiode, the photodiode generates a voltage; When the LED beam is blocked, the photodiode voltage is 0.

These voltage signals are amplified by the partial shaping of the circuit and are transmitted to the electronic control unit (ECU) at 1° and 120° crankshaft rotation angles, which calculates the engine speed and crankshaft position based on these signals.

Crankshaft position sensors are usually installed in distributors and are one of the most important sensors in control systems. Its functions are: detecting engine speed, so it is also called speed sensor; Detecting the position of the piston top dead center, so it is also called an top dead center sensor, which includes the detection of the top dead center signal of each cylinder used to control the ignition, and the top dead center signal of the first cylinder used to control the sequential fuel injection.

The ECU is based on this signal to control the oil pump relay electric ground wire to tie the iron, without this signal, the engine can not catch fire without oil.

The crankshaft position sensor is one of the most important sensors in the engine's electronic control system, which provides the ignition time (ignition advance angle), the signal to confirm the crankshaft position, and is used to detect the piston top dead center, crankshaft angle and engine speed.

The structure of 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 at the front end of the crankshaft, the front end of the camshaft, on the flywheel, or inside the distributor.

The crankshaft position sensor is a signal source that controls the ignition timing of the engine and confirms the position of the crankshaft. The crankshaft position sensor is used to detect the piston top dead center signal and the crankshaft angle signal, and it is also a signal source for measuring engine speed.

To put it simply, the function is to detect the speed and angle of the crankshaft of the engine and determine the position of the crankshaft. The detected results are transmitted to the engine computer or other computers. It is necessary to work together with the camshaft position sensor to determine the basic ignition time one by one.

The engine computer uses the signals from this sensor to dig up the engine's ignition and fuel injection. Control the timing of ignition and fuel injection, and also control the amount of fuel injected

The engine speed sensor is a crankshaft position sensor that monitors the engine speed. Nowadays, engines are used in EFI systems, and ECUs decide how much fuel is injected according to the speed of the engine, and the higher the speed, the more fuel is injected, and vice versa.

There are several functions of electronically controlled engine crankshaft position sensors. Monitor engine ignition timing. Corner signal. It can also control the ignition timing to give it an ignition signal.

The crankshaft position sensor detects the speed, and the engine will not work without the speed signal, and the computer version does not send a fuel injection signal [Car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, The engine speed is the operating frequency of the engine, so that it is displayed in the instrument. Without the crankshaft position sensor, the car would not be able to hit. At the same time, the rotational speed is also controlled.

Judge the engine crankshaft in the first few steels and then send a signal to the computer and start ignition and fuel injection [Car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Those two sensors are the most important for the engine. It can't start without them. Hope it helps, thank you. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, the crankshaft position sensor, mainly detects the speed of the engine, to determine the fuel injection, and a cylinder top dead center, if this is broken, the car will not be able to hit, I hope it will help you. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

The engine speed sensor is the crankshaft position sensor.

detects engine speed, so it is also called a speed sensor; Detecting the position of the piston top dead center, so it is also called an top dead center sensor, which includes the detection of the top dead center signal of each cylinder used to control the ignition, and the top dead center signal of the first cylinder used to control the sequential fuel injection. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, give the computer a signal, control the fuel injection and ignition [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The sensor is broken, and it doesn't work. Can't afford to refuel [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, after providing the signal to the computer version, the computer version will then ignite the electricity. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Because the front end of the sensor is directly extended into the crankcase, the crankcase is full of oil, and there is no need to be surprised that there is oil on the sensor, which is normal and does not affect the normal use.

With distributor: installed inside the distributor.

Without distributors: The camshaft position sensor is mounted in front of or behind the camshaft and is directly driven by the camshaft.

Crankshaft position sensor: Installed behind the crankshaft pulley or near the large flywheel, but also mounted on the cylinder block, driven by the crankshaft.

The automotive crankshaft position sensor is a signal source for effective control of the engine; If the engine is damaged, it will not receive the signal from the crankshaft position sensor and will not ignite, resulting in the engine failure light on the dashboard will be illuminated.

This sensor can detect the engine speed to better control the fuel injection, which can lead to power loss or knocking.

Not necessarily, only by confirming that the sensor has power and no signal can it be determined that there is a problem.

The oil pump has nothing to do with the crankshaft sensor, the gasoline pump does not work, check the insurance of the oil pump first, to see if it is broken, if it is not broken, it is possible that the oil pump is broken, it is recommended to go to the repair shop to check it.

These two are two different faults, it cannot be said that the oil pump is not working that the crankshaft position sensor is damaged, the oil pump is not working, it may be that the oil pump is broken, or the fuse is blown out. The resulting oil pump does not work.

The oil pump has nothing to do with the crankshaft sensor, you check the circuit first.

If the gasoline pump does not respond, it is recommended to check the oil pump relay and fuse first.

The oil pump does not sound means that the oil pump is not working, and the possible reasons why the oil pump is not working:

1. The fuse of the oil pump is broken

2. The oil pump relay is bad and does not engage

3. The oil pump is broken

4. There is a problem with the line.

Oil pump insurance, oil pump relays, wiring, will cause such phenomena.

If the oil pump does not sound, it is not working, first check the circuit to find the fault.

The oil pump is broken, or there is a problem with the oil pump.

Whether the oil pump is an oil pump or a gasoline pump.

Hello, if the crankshaft sensor is broken, it will affect the lack of oil supply, and at the same time, it will lead to the uphill oil can not be added; There is no idling, or the engine is seriously shaking in the idle state, and the exhaust pipe makes a popping sound when refueling, and occasionally the refueling stalls with the blasting sound; Unable to start, when starting the vehicle, you will hear the impact sound of the piston hitting the valve in the engine, and so on, in addition, the crankshaft position sensor is to sense the crankshaft speed to signal the computer version, so that the computer version controls the high-voltage power of the fuel injector, if it is damaged, it will not be ignited, and the crankshaft sensor failure will be displayed by the computer detector