What should I do if the fuel consumption of liuzhou wuling EFI engine is high?

The EFI engine uses electronic control devices instead of traditional mechanical systems (such as carburetor) to control the fuel supply process of the engine, but the high fuel consumption is affected by many factors, including the vehicle itself, drivers and road conditions. Generally speaking, there are seven aspects: engine, emission, transmission, body modeling, weight, tires and driving technology. Although road conditions have a great influence on fuel consumption, such as unblocked traffic and traffic jams, urban areas and highways will have a direct impact on fuel consumption, but road conditions will change at any time, so they are not included in the scope of major influencing factors.

1. Cause of failure of increased fuel consumption

1) The air filter is blocked or the idle speed is not adjusted properly.

2) The hot air valve is blocked or the ignition time is too late.

3)EFE heater is not working properly or the oxygen sensor is faulty.

4) The exhaust system is not working well or the tire pressure is insufficient.

5) The ventilation valve of 5)PCV crankcase is blocked or the filter is not clean.

6) The injector is blocked or leaked during cold start.

7) Internal damage or serious wear of the fuel injector.

8) Driving or parking brake delay.

9) The ignition time is adjusted too late.

10) The thermostat of the cooling system is faulty or the control temperature is too low.

1 1) There is something wrong with the constant temperature air filter, which keeps the hot air from getting in.

12)EGR recirculation valve is normally open due to sticking.