1. air flow sensor

The air flow sensor is one of the indispensable sensors in the automobile engine control system. It can measure the amount of air entering the engine and convert this information into an electrical signal and send it to the electronic control unit (ECU). The ECU calculates the required fuel injection amount based on the signal from the air flow sensor to ensure the smooth operation of the engine.

2. intake pressure sensor

The intake pressure sensor is used to measure the absolute pressure in the engine intake manifold. It can convert the intake pressure into an electrical signal and send the signal to the computer together with the speed signal. The computer determines the basic fuel injection volume of the injector based on these signals to adapt to different engine operating conditions.

3. Throttle Position Sensor

Picture The throttle position sensor is installed on the throttle to detect the opening of the throttle. It can convert the opening of the throttle into an electrical signal and send the signal to the electronic control unit (ECU). The ECU adjusts the fuel injection volume and ignition time according to the signal from the throttle position sensor to adapt to different engine operating conditions.

4. crankshaft position sensor

Picture The crankshaft position sensor is one of the most important sensors in the computer-controlled ignition system. It can detect the top dead center signal, crankshaft angle signal and engine speed signal, and input these signals into the computer. According to these signals, the computer issues the best ignition timing command according to the ignition sequence of the cylinders to ensure the smooth operation of the engine.

5. knock sensor

The knock sensor is installed on the engine block to monitor the knock condition of the engine. When the engine knocks, the knock sensor can convert the knock signal into an electrical signal and send the signal to the electronic control unit (ECU). The ECU adjusts the ignition advance angle according to the signal of the knock sensor to prevent the occurrence of knock, thereby protecting the engine from damage.