1, oil pressure alarm

Used to judge the oil pressure of the engine working room,

2. Crankshaft position sensor

Also known as crank angle sensor, it is the most important sensor in computer-controlled ignition system, and its function is to check.

Measure the top dead center signal, crank angle signal and engine speed signal, and input them into a computer to make an instrument.

The computer can give the best ignition timing instruction according to the ignition sequence of cylinders. There are three types of crankshaft position sensors:

Electromagnetic pulse crankshaft position sensor, Hall effect crankshaft position sensor (Santana 2000 car

And Beijing Cherokee), photoelectric effect crankshaft position sensor. Crankshaft position sensor has different types, and its control

The control mode and control accuracy are also different. The crankshaft position sensor is generally installed on one side of the crankshaft pulley or sprocket,

Some are installed at the front end of the camshaft, and some are installed on the distributor.

3. Knock sensor

The knock sensor is installed on the cylinder block of the engine to monitor the knock of the engine at any time; Adjust the ignition advance angle. At present, there are * * * vibration modes and non-* * vibration modes.

4. Inlet pressure and temperature sensor

Reflect the change of absolute pressure and intake temperature in the intake manifold, which is the key for ECU (engine)

An electronic control unit) provides a reference signal for calculating the fuel injection duration;

5. Throttle position sensor

Measure the throttle opening and provide it to ECU for fuel cut-off and fuel control.

Reference signal for correction of oil-gas ratio and ignition advance angle;

6. Oxygen sensor: detects the oxygen concentration in the exhaust gas and provides it to ECU to control the optimal fuel/air ratio.

Reference signal near the value (theoretical value);

7. Camshaft phase sensor

Like the crankshaft phase sensor, it signals the ECU to judge the ignition.

8. Water temperature sensor

Judge the temperature of the water temperature in the cylinder.

Thank you, please check it!