What Causes the Engine Fault Light to Flash and the Car Body to Shake?

[LeDeclan]

The poor combustion of the air-fuel mixture in the engine and abnormal fuel supply pressure can cause the engine fault light to illuminate and the car to shake. The details are as follows: 1. When the engine fault light comes on and the vehicle starts to shake, you need to stop immediately and call for a tow truck to wait for rescue. The causes of this phenomenon include: poor combustion of the air-fuel mixture in the engine. When the mixture in the cylinder is too rich, the vehicle will experience symptoms such as knocking and shaking. When the mixture is too lean, the vehicle will exhibit poor acceleration. 2. Abnormal fuel supply pressure and faults in the intake pressure sensor can also cause this. Irregular fuel pump supply pressure or incorrect readings and poor performance of the intake pressure sensor can lead to car body shaking and insufficient power. Faults in the working conditions of spark plugs, high-voltage wires, and ignition coils, as well as poor performance of the ignition system or inadequate spark plug firing, can also result in the engine fault light illuminating, car shaking, and insufficient power.