How to Clear the Maintenance Reminder in a Car?

What Causes the Engine Warning Light to Illuminate in an Automatic Transmission Vehicle?

The engine warning light may illuminate due to the following 7 main reasons: Sensor malfunction: This includes sensors such as coolant temperature, crankshaft position, air flow, intake temperature, and oxygen sensors. When these sensors are damaged, have poor contact, or experience signal interruption, the vehicle's ECU cannot accurately obtain engine data, triggering the engine warning light. Fuel/oil quality issues: Failure to use fuel and engine oil as specified by the manufacturer may cause engine wear, leading to the warning light activation. Poor combustion of air-fuel mixture: This can result in engine carbon buildup or knocking. When detected by the oxygen sensor and reported to the ECU, the warning light will illuminate. Causes include spark plug failure, ignition coil failure, fuel pump failure, or fuel line blockage. Turbocharger issues: Problems with the intake boost piping or turbocharger can trigger the warning light. The most common issue is turbocharger damage, often accompanied by symptoms like oil leaks, excessive oil consumption, reduced power, metallic noises, or blue/black smoke from the exhaust. Intake system problems: Air intake issues may cause engine pipe blockages, potentially triggering the warning light. A dirty air filter that hasn't been regularly cleaned can lead to intake problems. Exhaust system issues: Exhaust faults can also activate the warning light. Common causes include rear oxygen sensor failure, catalytic converter problems, or exhaust camshaft and bearing failures. The catalytic converter is particularly vulnerable to damage from leaded gasoline, certain lubricant additives, physical impacts, or fuel system issues. Anti-theft system malfunction: If the electronic anti-theft system fails or the anti-theft controller doesn't match the engine ECU, it may prevent normal engine operation and trigger the warning light. When the engine warning light illuminates, follow these steps: First, check if the engine is running normally. If there's noticeable shaking, black smoke, etc., avoid restarting the engine. Note: Never restart if the light is red. If the engine can start, turn it off for 5-10 minutes. Then, without pressing the brake, press the start button once or turn the key halfway to the ON position (without depressing the clutch). The vehicle will perform a self-check; observe if the warning light turns off after 5-10 seconds. If the light remains on, visit a service center promptly. Technicians can use diagnostic tools to read fault codes and perform targeted repairs.

13

2

Share

How long is it recommended to drive after a car battery is depleted?

After the car battery is depleted, it is recommended to drive for one to two hours to restore its original performance. If the car battery is severely depleted and the engine cannot be started, a jump-start procedure is required, followed by normal driving for a certain distance to recover. Steps for jump-starting the generator: 1. First, ensure that the auxiliary battery is 12V and the negative terminal is grounded. 2. Connect the jumper cables, making sure not to reverse the positive and negative terminals, as this may cause sparks when connected. Also, ensure the cables are tightly connected to the battery terminals (full contact) to avoid sparking during the process. 3. Start the engine of the vehicle with the auxiliary battery and run it at medium speed, then start the engine of the vehicle with the depleted battery. 4. Finally, disconnect the cables in the exact opposite order.

16

3

Share

What are the usual hours for drunk driving checks?

Drunk driving checks are typically conducted from 9 PM to 2 AM. Drunk driving refers to operating a vehicle within 8 hours after alcohol consumption or within 24 hours after being intoxicated. The basic procedures for traffic police conducting drunk driving checks are: 1. Setting up checkpoints and roadblocks; 2. Stopping passing vehicles and requiring breath tests; 3. Allowing vehicles with test results below 20mg per 100ml to proceed; 4. Arranging blood alcohol tests for vehicles exceeding 20mg per 100ml. For drunk driving of motor vehicles, the traffic management department of the public security authority will detain the driver until sober, revoke the motor vehicle driving license, and pursue criminal liability according to law. The driver cannot re-obtain a motor vehicle driving license within five years. For drunk driving of commercial motor vehicles, the traffic management department of the public security authority will detain the driver until sober, revoke the motor vehicle driving license, and pursue criminal liability according to law. The driver cannot re-obtain a motor vehicle driving license within ten years and is prohibited from driving commercial motor vehicles even after re-obtaining the license. If a major traffic accident occurs due to drunk driving or driving while intoxicated, constituting a crime, criminal liability will be pursued according to law, and the traffic management department of the public security authority will revoke the motor vehicle driving license, with a lifetime ban on re-obtaining it.

2

1

Share

What does the China 6b emission standard mean?

China 6 vehicles are cars that meet the national sixth-stage motor vehicle pollutant emission standards. The China 6 emission standard is an upgraded version of the current China 5 emission standard, imposing stricter and more scientific requirements on vehicle exhaust emissions. Different emission standards have varying limits for vehicle pollutant emissions. From China 1 to China 6, the emission limits for vehicle exhaust pollutants have become increasingly stringent. The China 6b standard requires: 1. Carbon monoxide emissions per kilometer driven must not exceed 500mg. 2. Non-methane hydrocarbon emissions per kilometer driven must not exceed 35mg. 3. Nitrogen oxide emissions per kilometer driven must not exceed 35mg. 4. PM (particulate matter) emissions per kilometer driven must not exceed 3mg.

6

5

Share

What is the approximate length of an ordinary sedan?

Generally, the length of a sedan is around 4.8 meters. The relevant introduction about vehicle length is as follows: Concept of vehicle length: The distance between the two extreme points in the length direction of a vehicle, that is, measured from the most protruding position of the front bumper to the most protruding position of the rear bumper, the distance between these two points. Classification based on sedan length: Mini car (A00) length less than 3.7M; Subcompact car (A0) length less than 4.3M; Compact car (A) length less than 4.6M; Mid-size car (B) length less than 4.9M; Full-size car (C) length less than 5.1M; Luxury car (D) length greater than 5.1M.

19

5

Share

How to Calculate Motorcycle Fuel Consumption?

First, fill up the fuel tank completely and note down the current odometer reading in kilometers. When you next refuel, record the odometer reading again and note the amount of fuel added (either in liters or in monetary terms). Then use this formula: (Amount spent on fuel × 100 (for 100 kilometers)) ÷ distance traveled between two refuels in kilometers = fuel cost per 100 kilometers. Based on local fuel prices, divide the fuel cost by the price per liter to calculate the fuel consumption in liters per 100 kilometers. For better accuracy, repeat this process several times and take the average. Alternatively, a simpler method is to fill up the tank completely, drive exactly 100 kilometers, and then refill the tank. The amount of fuel added at this point will be the fuel cost or consumption in liters per 100 kilometers.

2

Share

How to Clear the Maintenance Reminder in a Car?

What Causes the Engine Warning Light to Illuminate in an Automatic Transmission Vehicle?

How long is it recommended to drive after a car battery is depleted?

What are the usual hours for drunk driving checks?

What does the China 6b emission standard mean?

What is the approximate length of an ordinary sedan?

How to Calculate Motorcycle Fuel Consumption?

What color decals are suitable for a red car?

What to Do If the Cigarette Lighter Doesn't Pop Back?

How long does it take to get a 50-choose-1 license plate?

What are the consequences of not purchasing vehicle damage insurance?