Idea: What's with the automobile engine emission fault light?

The reason why the automobile engine emission fault light is on is: 1. Poor gasoline quality leads to poor engine combustion, which leads to substandard emissions. 2. The working condition of the engine is unstable, so it is recommended to stop the engine for maintenance as soon as possible.

The fault light of the engine exhaust system may be the poor quality of gasoline, which leads to poor combustion of the engine and thus the emission is not up to standard. When driving, if the fault light is on, the engine power is insufficient or the engine jitter is serious, you need to go to the nearby maintenance service station to check and repair the engine.

The fault light of engine exhaust system may be that poor gasoline quality leads to poor engine combustion, and then the emission is not up to standard. When driving, if the fault light is on, the engine power is insufficient or the engine jitter is serious, you need to go to the nearby maintenance service station to check and repair the engine.

The failure light of engine exhaust system is on because:

1. Poor quality of automobile gasoline and poor oil products may lead to abnormal mixing ratio, electronic equipment failure and abnormal exhaust system.

2. Electronic components of the air intake system are faulty, such as oxygen sensor, carbon canister solenoid valve, throttle valve and engine carbon deposit.

The engine control program needs to be updated or debugged.

Once the engine fault light is on, it means that the parameters of the engine will change. If this problem is not solved in time, the combustion state of the engine will never be adjusted to the normal state.

Causes of engine exhaust system failure;

1, the engine exhaust system fault light is on, the main reason is that the throttle valve or the engine has too much carbon deposit, resulting in imbalance of the mixture ratio. When the engine computer detects some signals that affect the emission requirements, the fault light will light up.

2, often hang high gear when the engine speed is low, which will cause this phenomenon.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)