What's wrong with the fault light of golf 7 oxygen sensor?

When the fault light of Golf 7 oxygen sensor of Pacific Auto Network is on, it means that the oxygen sensor is damaged, which will affect the normal operation of the engine. When the car is driving, the oxygen sensor basically works all the time. The oxygen sensor detects the oxygen concentration in real time and sends a feedback signal to the ECU, and then the ECU adjusts the fuel injection quantity of the injector. After the oxygen sensor is damaged, the fuel consumption of the car will increase.

1. There is something wrong with the gasoline added or there is too much carbon in the engine, which leads to poor combustion state of the engine and may lead to the failure light.

There is something wrong with the oxygen sensor of the engine. This kind of fault will generally make the engine fault light yellow and will not affect the normal driving. Just remember to check the reason why the engine fault light is on after driving.

3. Problems such as carbon deposition in the fuel nozzle or intake valve will cause the fault light to give an alarm. Generally, this situation has something to do with the quality of the oil you refuel, or you didn't pay attention to the dust when repairing the car.

Extended data:

EPC indicator lights are more common in the public. After the key door is opened, the vehicle starts self-inspection, and the EPC indicator light will light up for a few seconds and then go out.

If the vehicle does not go out after starting, it means that the mechanical and electronic system of the vehicle has failed. Generally speaking, EPC lights have two possibilities.

First, the throttle is dirty and needs cleaning. In another case, the brake light is not on, so it is necessary to check the brake switch and wiring. Also, due to the oil problem, the EPC fault light will also light up.

In the past, the driver controlled the accelerator pedal according to the power demand of the engine, and the accelerator pedal controlled the accelerator opening through a steel wire rope.

In EPC system, the former accelerator cable is replaced by the sensor of pedal device, and the engine control unit (ECU) calculates the optimal target accelerator opening according to the position data fed back by the sensor of pedal device, and sends a signal to the accelerator drive motor to make the accelerator rotate to this angle.

This method is superior to the cable acceleration control, because the electronic throttle knows the power demand of the engine by calculating and analyzing the input signal of the accelerator pedal position, and converts this information into the torque of the engine through various actuators.

When the engine speed needs to be adjusted due to safety, fuel consumption and other reasons, the engine control unit can adjust the position of the throttle valve without using the accelerator pedal. The advantage of this structure is that the control unit can limit the position of the throttle according to various requirements.