How to solve the problem of DA465Q 1A gasoline engine with high fuel consumption

1. The thermal efficiency of the gasoline engine itself is relatively low at low temperature, due to the low ambient temperature, the engine will lose a lot of heat, the thermal efficiency is reduced, and part of the energy of the fuel is used to ensure the normal operation temperature of the engine 80 90·C.

2 In winter, in order to ensure the temperature in the car, the heater needs to be turned on, and part of the heat of the fuel is used for "heating".

3. In the low temperature environment, due to the increase of the viscosity of the lubricating oil, the running resistance of the parts becomes larger, the cold car starting resistance increases accordingly, and the fuel consumption will also increase to a certain extent.

4 The hot car will take longer than usual and the fuel consumption will also increase.

5. At low temperatures, the volatility of fuel is poor, the atomization is poor, and the combustion efficiency may decrease.

6 In winter, when there is a lot of wind, the air resistance increases, and fuel is also consumed.

7 If the road is slippery in snowy weather, the road conditions and driving conditions are poor, and the fuel consumption is even greater, and the road slippery road will also cause some fuel to be useless.

8 In winter, the sunshine hours are short, and the headlights need to be used earlier when it gets dark, and the consumption of electricity will also lead to an increase in fuel consumption.

The oil pump is almost under the calibration, under the air filter cleaning.

Replace the spark plugs, throttle valves, intake air cleaning, and check if there is a thermostat.

There are many reasons for ha, pressure sensors, oxygen sensors, spark plugs.

DA465Q2 engine parameters: cylinder volume 970cc,Compression ratio, maximum horsepower 48, maximum power (kw rpm), maximum torque 74.

DA465Q2 is a gasoline engine independently developed by Dongan Power.

It is mainly used in Changhe Beidouxing models.

Parameters that affect the performance of the engine

1. Maximum power.

Maximum power refers to the maximum power that the engine can output, the unit is horsepower, which is related to the speed, and the output power of the engine is normal under the condition of normal oil feeding.

It increases with the increase of rotational speed, at a certain critical point.

The power will reach the maximum value, at which point the power is the maximum power and the rotational speed is the maximum power speed.

2. Maximum torque.

Refers to the crankshaft of the engine.

The torsional torque can be understood as the effect of directly acting on the car, the greater the torque, the easier the car moves under the same circumstances, there is a maximum torque speed range, outside the range, you can clearly feel the lack of energy of the car, generally normal driving is in the maximum torque range.

3. Air intake mode.

The air intake mode is divided into two types: natural air intake and pressurized air intake, natural air intake is the most primitive air intake method, relying on the negative pressure suction generated by the piston downward, without any assistance from the touch fiber. Supercharged intake is in fact an increase in the amount of air intake, so that emissions can be reduced while maintaining the same power, which is also divided into turbocharging.

and mechanical increases.

4. Number of cylinders.

The number of cylinders can also represent the power of the car to a certain extent, generally speaking, the more cylinders, the better and smoother the power of the car. However, the higher the number of cylinders, also represents an increase in fuel consumption and displacement.

5. Number of valves.

The number of valves is an indication of the number of valves contained in each cylinder, and there are intake and outlet valves, and the number of valves can generally affect the emissions and speed of an engine.

The above content reference: Encyclopedia - Engine.