The throttle is dirty. Does it cost gasoline?

The following is about "Is the throttle dirty or not?" Related introduction:

The throttle is dirty and expensive;

1, fuel system, fuel injector failure: uneven fuel injection from fuel injector and bad fog, resulting in uneven power of each cylinder. The common reasons are: the injector is blocked, the sealing performance is poor, and the ejected fuel is linear.

2. Fuel pressure fault: the oil pressure is too low, the fuel sprayed by the injector is in poor atomization state or the sprayed fuel is linear. In severe cases, only oil droplets are injected, the fuel injection quantity is reduced, and the mixture is too thin;

3, the oil pressure is too high, the actual fuel injection quantity increases, making the mixture too rich. Common reasons are: fuel filter is blocked; The fuel pump filter screen is blocked; The pumping capacity of the fuel pump is insufficient; The spring force of fuel pump safety valve is too small; Deformation of oil inlet pipe; Fuel pressure regulator is faulty; The oil return pipe is compressed and blocked.