The fuel consumption of Le Chi 1.0 suddenly increased. It used to be about 7 oil, but it has averaged 1 1 oil since the throttle was washed. Why?

Considering the decline of fuel economy in the maintenance area, it is necessary to set relevant data after cleaning the air inlet, fuel system and cutting off the battery. Because, after cleaning the throttle, the throttle opening will be reduced at idle speed, and the engine control unit uses the previous data, so there will be standard errors in the fuel injection program and idle speed value. Therefore, considering your vehicle maintenance and running conditions, it is recommended that you go to the repair shop to set the basic idle speed value.