What Causes the Engine Yellow Warning Light and Car Shaking?

1 Answers
VonJuniper
07/24/25 4:59pm
Reasons for the engine yellow warning light and car shaking: poor combustion of the air-fuel mixture, spark plug failure, and abnormal pressure. Poor Combustion of the Air-Fuel Mixture: When the air-fuel mixture in the cylinder is too rich, the vehicle may experience knocking and shaking. If the mixture is too lean, the vehicle may exhibit poor acceleration. Solution: When the engine warning light comes on and the car starts shaking, immediately stop the vehicle and call for a tow truck to await assistance. Spark Plug Failure: If the issue is not with the air-fuel mixture, it could be due to problems with the spark plugs, high-voltage wires, or ignition coils. Poor performance of the ignition system or weak spark plug firing can also cause the engine warning light to illuminate and result in shaking and insufficient power. Solution: If such a problem is detected, check for any abnormalities in the spark plugs and have them inspected thoroughly at a professional repair shop. Abnormal Pressure: This can be caused by abnormal fuel supply pressure or a faulty intake pressure sensor. Incorrect fuel pump pressure or erroneous readings and poor performance of the intake pressure sensor can lead to car shaking and power loss. Solution: First, stop the vehicle immediately and check if the engine oil level is sufficient, then proceed to a professional repair shop for maintenance.
Was this review help?
1
4
Share
More Forum Discussions

Is the wheel bolt of Volkswagen Magotan tightened clockwise or counterclockwise?

The wheel bolt of Volkswagen Magotan is counterclockwise, meaning counterclockwise direction loosens it, while clockwise direction tightens it. Tire deformation: If the tire is already deformed, it indicates structural changes in the tire body, mainly caused by significant force applied to the tire, damaging its internal structure. Therefore, it must be replaced. Severely damaged tire body: If inspection reveals that the tire body is severely damaged, the tire needs to be replaced to ensure driving safety. A damaged tire body cannot bear the vehicle's weight or high-speed operation. Severely damaged tread: If the tire is accidentally cut by hard or sharp objects, check the severity of the damage. If the tread pattern is severely worn or the tread is punctured with a hole exceeding 6mm in diameter, a new tire is required.
19
5
Share

What is the Bluetooth name for Audi?

Audi Bluetooth name is BluetoothonAudi. Basic introduction to car Bluetooth: Car Bluetooth is a feature equipped in many vehicles. After connecting a phone via Bluetooth, it can play music from the phone and also allows direct phone call answering. Functions of car Bluetooth: Many cars come with a car connectivity system, which allows the owner's phone to connect with the car's infotainment system, thereby enabling more functionalities. Many vehicles are factory-equipped with Carlife or CarPlay systems. Carlife is specifically designed to connect with Android phones, while CarPlay is tailored for connecting with Apple iPhones.
13
3
Share

Why is there no communication with the instrument panel after replacing the BCM in a Nissan Teana?

Nissan Teana has no communication with the instrument panel after replacing the BCM because the BCM cannot match the vehicle, and the BCM needs to be replaced again. Meaning of BCM: BCM refers to the Body Control Module, whose primary function is to coordinate the operation of various body functions based on electronic signals. The Body Control Module can control electronic components including doors, airbags, turn signals, and wipers. Currently, almost all vehicles use a Body Control Module, and its application enables modern cars to perform more complex functions. Symptoms of BCM failure: For automatic transmission vehicles, there may be a locked P-gear situation, affecting gear shifting. Other possible issues include abnormal operation of the horn, wipers, or starting failures.
6
2
Share

Will the size of the Verano Pro become smaller?

Verano Pro size has become smaller, here are the relevant details: Verano Pro overall design: The overall design is similar to the Verano Pro, with enhanced sporty details, such as a larger front grille, blackened rear bumper trim, and an exclusive blue body color. Changes in Verano Pro: The body dimensions have been slightly reduced, with both length and width being smaller than the previous model. The powertrain has been upgraded: the current Verano uses 1.0T and 1.3T three-cylinder engines, while the new model features a 184-horsepower 1.5T four-cylinder engine, equipped with rich and practical tech comfort features and the latest iteration of eConnect 3.0 intelligent connectivity technology.
1
3
Share

Will the Xingrui Elite Edition continue to be produced?

Xingrui Elite Edition is no longer accepting any orders from the manufacturer and is currently out of production. Below are the relevant details: Geely Xingrui: The Geely Xingrui features the latest family-style design language. The entire lineup is equipped with Volvo's 2.0T engine and offers six body colors. The front grille design has been updated from the previous water ripple style to a vertical waterfall pattern. The headlights are slender and narrow with a relatively simple internal structure. The rear of the Xingrui adopts a fastback design with short front and rear overhangs, achieving a wheelbase of 2800 mm and a 50:50 weight distribution. Elite Edition: The Xingrui Elite Edition is no longer accepting any orders from the manufacturer and is currently out of production.
5
5
Share

What does it mean when a Mercedes-Benz displays a spring pattern?

The reason a Mercedes-Benz displays a spring pattern is due to a malfunction in the engine power electronic control system. It is necessary to reduce speed immediately and drive to a professional repair facility to have the engine inspected. For driver convenience: The driver controls the accelerator pedal based on the engine's power demand. The accelerator pedal regulates the throttle opening via a cable. In the EPC system, the throttle cable is replaced with a sensor in the pedal assembly. The engine control unit determines the position based on feedback from the pedal assembly sensor. Improved signal transmission: This system is superior to cable-type acceleration control because the electronic throttle calculates and analyzes the input signal from the accelerator pedal position to determine the engine's power demand. The information is then converted into engine torque by various actuators.
4
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.