What Causes the Engine Light to Come On and the Car to Shake?

[StRuby]

Poor combustion of the air-fuel mixture and abnormal fuel supply pressure can cause the engine warning light to illuminate and the car to shake. Here are some related details about the engine light coming on and the car shaking: 1. Poor combustion of the air-fuel mixture in the engine. When the mixture in the cylinder is too rich, the vehicle may experience symptoms such as knocking and shaking. 2. When the air-fuel mixture is too lean, the vehicle may exhibit symptoms like poor acceleration. 3. Abnormal fuel supply pressure and faults in the intake pressure sensor can also cause these issues. If the fuel pump's supply pressure is abnormal or the intake pressure sensor provides incorrect readings or malfunctions, it can lead to car shaking and insufficient power. 4. Faults in the spark plugs, high-voltage wires, or ignition coils can also cause these symptoms. Poor performance of the ignition system or weak spark plug firing can result in the engine warning light coming on, car shaking, and insufficient power.