Why does Mazda Yi Rui consume too much fuel?

1, when running at high speed, test it. If the fuel consumption is reasonable, there is no fault in the engine.

2. It's related to the road conditions, such as often walking in traffic jams.

3. It is related to the nature of work, such as running very little every day, or running a lot every day, but stopping more times. Because the engine injects too much fuel when it is cold.

There is something wrong with the engine.

(1) The clutch is seriously worn and skidded.

(2) The throttle and idle motor are dirty, so it is recommended to clean them regularly.

(3) Check the fuel injection quantity of the fuel injector to see if there is any blockage.

(4) Use an endoscope to see if there is too much carbon deposit in the intake valve (generally, disassembly-free cleaning can't solve it).

(5) Check whether the spark plug model is correct and see if the vacuum tube of the air intake system leaks.

(6) The decoder is used to detect whether the data flow of each sensor is normal.

Please follow the above steps to solve the problem step by step.