11sourantodiesel 2.2t has no fault code, so it can't lift the speed to refuel.

1. Oil supply system failure: the engine needs to burn proper amount of fuel. If the fuel is too much or too little, it will easily affect the working state of the automobile engine.

Incidentally, the mixture concentration will also affect the fuel quantity, because the current automobile engine control unit is very intelligent, and it will determine the fuel injection quantity of the fuel injector according to many factors, that is to say, the fuel injection quantity of the fuel injector will change with the mixture concentration, so the throttle part of the automobile should also be checked.

2. Aging of ignition system: The ignition system generally includes spark plug and ignition coil, both of which are components that provide energy for the engine, and both of them are prone to aging. When the ignition system is aging, the energy provided by the ignition system may be insufficient and the acceleration will be weak.

3. Circuit component failure: Because the instructions issued by the engine control unit are influenced by many circuit components, if the automobile circuit components are damaged, it is easy to cause the engine to work abnormally. However, due to the hidden faults of circuit components, it is generally necessary to find out the fault location with the help of detectors.