What Causes the Vehicle's Engine Malfunction Light to Illuminate?

1 Answers
DiLeonardo
07/29/25 11:35am
Vehicle's engine malfunction light illuminates due to: 1. Sensor damage, poor contact, or signal interruption; 2. Poor engine maintenance; 3. Low-quality fuel and engine oil; 4. Incomplete combustion of the air-fuel mixture; 5. Faulty spark plugs or ignition coils; 6. Fuel pump failure or clogged fuel lines; 7. Clogged air conditioning filter. Solutions for the engine malfunction light: 1. Use fuel additives to clean the entire fuel system; 2. After engine cleaning, use higher-grade gasoline; 3. Improve fuel cleanliness with high-quality fuel additives; 4. Replace the catalytic converter.
Was this review help?
20
4
Share
More Forum Discussions

How to Remove Odors from Old Cars?

Here are methods to remove odors from old cars: 1. Use absorbent products. 2. Use deodorizers to eliminate odors inside the car. 3. Replace the air conditioning filter to remove AC odors. 4. Use air conditioning duct cleaners to eliminate odors within the AC system. 5. Clean the ashtray and spray air freshener. 6. Sun exposure and ventilation. Below are the hazards of car odors to human health: 1. Irritation to the skin: The main harm of formaldehyde is its irritating effect on the skin and mucous membranes. Formaldehyde is a protoplasmic poison that can bind with proteins. High-concentration inhalation can cause severe respiratory irritation and edema, eye irritation, and headaches. 2. Allergenic effects on humans: Direct skin contact with formaldehyde can cause allergic dermatitis, pigmentation, and necrosis. Inhalation of high concentrations of formaldehyde can induce bronchial asthma. 3. Mutagenic effects: Laboratory animals exposed to high concentrations of formaldehyde may develop nasopharyngeal tumors. 4. Prominent symptoms: Headache, dizziness, fatigue, nausea, vomiting, chest tightness, eye pain, sore throat, poor appetite, palpitations, insomnia, weight loss, memory decline, and autonomic nervous disorders. Prolonged inhalation by pregnant women may lead to fetal malformations or even death. Long-term inhalation by men may result in sperm malformation and death.
5
4
Share

How to Deal with Wet Car Seats?

Here are the methods to handle wet car seats: 1. Use a dry towel to absorb and wipe the wet areas. 2. Take out the floor mats and dry them in the sun; if they are not too wet, you can use the car heater to dry them. 3. On sunny days, open all the car doors to allow air circulation. If the seat covers are fabric, remove and wash them. If they are leather, wipe them with a towel dipped in transparent soap, then clean them twice with a damp towel. 4. Finally, clean around the sunroof and seams. If available, apply talcum powder or baby powder to the rubber seals.
4
5
Share

What is the reason for sudden loss of acceleration when pressing the throttle while driving?

The reasons for a car's inability to accelerate when pressing the throttle are as follows: 1. Check the fuel pressure, cleanliness, and replace the fuel filter. 2. Inspect the ignition system, including spark plug wires and spark plugs. 3. Check the cylinder pressure to see if the engine is misfiring. 4. Ensure the intake and exhaust pipes are unobstructed (check for catalytic converter blockage). 5. Verify the ignition timing, throttle position sensor, and idle control motor. 6. Assess the quality of the gasoline. Relevant information is as follows: 1. The throttle pedal, also known as the accelerator pedal, is part of the car's fuel supply system. By controlling the pedal's depression, it regulates the engine's throttle opening, air intake, and fuel injection (controlled by the ECU), thereby managing the engine's speed. 2. In automotive engines, the throttle is typically controlled by a pedal, which is the device that regulates fuel supply. The throttle pedal should be operated with the right heel resting on the floor of the driver's compartment as a pivot, and the ball of the foot gently pressing the accelerator pedal, using the ankle joint's flexion and extension to depress or release. When operating the throttle pedal, apply force gently, ensuring smooth and gradual movements.
3
3
Share

How to Find the Most Accurate Reference Points for Automatic Transmission Reverse Parking?

Reverse parking requires the most precise reference points: First, the steering wheel full-lock point. Second, the straightening point when entering the garage. Third, the parking point. Here are the details: Steering wheel full-lock point: This is the most critical reference point for reverse parking. If you cannot find this point, correcting the car's position later will be very troublesome. Moreover, you might hit the garage corner, leading to failure. Learn to observe the left and right rearview mirrors to locate the position where the lower edge of the mirror aligns with the garage boundary line. Straightening point when entering the garage: When the car enters the garage, straighten its position. When straightening, observe the left and right rearview mirrors to ensure the garage boundary lines are parallel to the car body, then straighten the car immediately. During this process, control the speed carefully, turn the steering wheel slowly, and adjust the car's position to the center gradually. If one side appears wider in the mirror, turn the steering wheel slightly toward that side. Make small adjustments multiple times until both sides are equidistant, then straighten the car. Finding the parking point: Ensure the rear of the car does not touch the rear boundary line, or you will fail. Use the relationship between the lower edge of the rearview mirrors and the garage's front boundary line to locate the parking point. Maintain a proper sitting posture to accurately find the parking point. Be meticulous and patient during the operation. Learn to observe carefully and identify the correct points.
10
4
Share

Can I register for driving lessons with a household registration booklet?

Household registration booklets cannot be used to register for driving lessons. Here is some information about driving school registration: 1. Required documents: According to Article 103 of the 'Regulations on the Application and Use of Motor Vehicle Driving Licenses', identity proof refers to residents' identity proof, which is either a 'Resident Identity Card' or a 'Temporary Resident Identity Card'. Therefore, temporary ID cards have the same rights as regular ID cards and can be used for driving school registration. 2. Reasons why household registration booklets cannot be used: Household registration booklets do not contain personal photos, making it impossible to verify personal information; household registration booklets cannot read system data, making it impossible to identify whether there are circumstances that prevent participation in the exam.
14
1
Share

What Causes the Engine to Stall When Releasing the Clutch Too Quickly?

Releasing the clutch too quickly causes the engine to stall because it suddenly places too much load on the engine, which has insufficient power to handle it, leading to the car stalling. Below is an explanation of the reasons related to stalling when releasing the clutch: Specific reasons for stalling when releasing the clutch too quickly: During startup, if insufficient throttle is applied, the engine speed remains low, and the flywheel's rotational momentum is also low. If the clutch is released too abruptly at this point, the engine immediately connects to the wheels through the drivetrain. Since the wheels are stationary during startup, the engine's inertia is insufficient to carry it into the combustion (power) phase, causing the car to stall. Alternatively, even if it enters the power stroke, the energy output from burning the fuel-air mixture may not be enough to turn the wheels, causing the engine to 'choke' and stall. Precautions when releasing the clutch while driving: Ensure smooth car startup. The transition from stationary to moving involves significant inertia, and the engine generates substantial torque resistance. Ensure smooth gear shifting to prevent drivetrain overload. If the clutch is released to a point where the car starts to shake, additional throttle is needed to start moving. The car won't roll back when in the semi-engaged clutch state, especially during hill starts. The clutch is used for gear changes; keeping your foot on the clutch for extended periods will shorten its lifespan.
10
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.