Dongfeng Yi Tu will run for a while, and the air leakage fault light will light up.

1. There may be something wrong with the fuel emission system of the car, so it can be operated manually. Start the vehicle and then turn it off. Repeat this action three times, and then see if the fault light is on.

2. There is a fault in the oxygen sensor of the vehicle, which affects the built-in computer of the vehicle to detect the oxygen content in the vehicle exhaust, and it is impossible to correctly judge the composition of the vehicle exhaust. The built-in computer will directly judge that the exhaust emission is not up to standard, leading to the engine failure light.

It is also possible that the ignition system of the vehicle is faulty. For example, the engine's spark plug gap is too large, the vehicle's ignition coil is damaged, or the engine's fuel nozzle is faulty, which will cause the engine's fault light to light up.