What are the main sensors of China 4G93 engine EFI engine?

Generally, the intake pressure sensor is a follow-up air temperature sensor (throttle position sensor, if it is an electronic throttle, the sensor has a controller). Some sensors are not suitable for this sensor, so an air flowmeter is used.

Water temperature sensor

Camshaft position sensor, which can be omitted if the intake pressure sensor is located on the intake manifold.

Crankshaft position sensor

Generally, there are two oxygen sensors, one in front of the secondary catalyst and the other behind the secondary catalyst. If the exhaust manifold is divided into two parts, four parts may be needed.

Acceleration sensor, not installed in all cars, mainly determines the diagnosis of fire in OBD, perpendicular to the ground.

If it is an electronic accelerator, there is also an accelerator pedal sensor.

A knock sensor for detecting whether knocking occurs.

Some air-conditioning compressors also need the computer control of the engine system, and an air-conditioning high and low pressure sensor will be added.

Some speed sensors are traditionally installed at the joint of engine and gearbox, while others use ABS wheel speed sensors for data acquisition.

The automatic shift will have a switch value of P/N position input into the computer.

The clutch position switch sensor detects the position of the clutch pedal and adjusts the driving comfort.

That's basically it.