What is the reason for the phenomenon of fuel cut-off when the vehicle is driving?

It is possible that the accelerator pedal position sensor or accelerator position sensor is faulty, and the idle speed control valve and engine computer fault may also cause this phenomenon.

Causes and solutions of oil cut-off phenomenon: 1, spark plug gap is too large and too small, which will make the spark weak, and the two electrodes are easily connected by carbon deposits and cannot produce spark; If the gap is too large, the required breakdown voltage between the two electrodes will increase excessively, and the ignition coil will work in an overload state. When the breakdown voltage exceeds the working capacity of the ignition system, the spark plug will not reliably generate electric sparks, especially at high speed. 2. If the oil pressure in the fuel system is too low, the oil pressure value on the oil pressure test observation table should meet the specified value in the automobile manual. If the oil pressure is too high, check the oil pressure regulator; If the oil pressure is too low, check the electric fuel pump, fuel filter and oil pressure regulator. Measurement of fuel pressure, maximum pressure and holding pressure of electric fuel pump when engine is running. 3. Check the fuel state and the air-fuel ratio of the engine to see if the nozzle is dirty and the engine is unstable. (Photo/Text/Photo: Cao Bo) @20 19