What is the fault code of engine normal times p0 17 1?

The air-fuel ratio is too lean, so it needs fuel cleaning. Most of the car failures are due to the damage of the sealing ring of the fuel filler cap, or the fuel filler cap is not properly covered.

Too lean air-fuel ratio means that the fuel supply is too small. This fault code will appear if the adaptive fuel control system has reached the compensation limit, but the air-fuel ratio is still lean.

Causes of failure include air leakage behind air flow (MAF) sensor, PCV system leakage, oxygen sensor failure, exhaust leakage near oxygen sensor, EGR leakage, air flow (MAF) sensor failure, dirty fuel filter, insufficient fuel supply from fuel pump, fuel pressure regulator failure, fuel injector blockage, engine speed sensor failure, electronic control module (PCM or ECM) failure, etc.

Extended data:

Precautions:

1, automobile fuel cleaning is to clean the carbon deposit at the nozzle, throttle and throttle to ensure the normal atomization of fuel and prevent the engine from stalling or shaking.

2. Clean fuel can also ensure the normal air-fuel ratio and compression ratio of the engine and prevent the occurrence of black smoke.

3, fuel cleaning by cleaning the throttle, nozzle, improve fuel efficiency, reduce emissions, protect the environment, protect all parts of the fuel system.

4. If the fuel is not cleaned for a long time, the phenomenon of unstable idle speed and difficult starting will occur due to poor atomization, so it is necessary to clean the fuel.

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