What Does It Mean When the Check Engine Light Comes On?

What Are the Types of Crankshaft Position Sensors?

Crankshaft position sensors mainly come in the following three types: 1. Magnetic Induction Type. The magnetic induction speed sensor and crankshaft position sensor are installed in two layers within the distributor. The sensor consists of a permanent magnet induction detection coil and a rotor (timing rotor and speed rotor), with the rotor rotating along with the distributor shaft. The timing rotor can have one, two, or four teeth, among other forms, while the speed rotor has 24 teeth. The permanent magnet induction detection coil is fixed on the distributor body. By knowing the signals from the speed sensor and crankshaft position sensor, as well as the firing order of the cylinders, the crankshaft position of each cylinder can be determined. The rotor signal discs of the magnetic induction speed sensor and crankshaft position sensor can also be installed on the crankshaft or camshaft. 2. Hall Effect Type. The Hall effect speed sensor and crankshaft position sensor are signal generators that utilize the Hall effect. The Hall signal generator is installed inside the distributor, coaxial with the distributor rotor, and consists of an encapsulated Hall chip and a permanent magnet fixed together on the distributor plate. The number of notches on the trigger wheel matches the number of engine cylinders. When the blades on the trigger wheel enter between the permanent magnet and the Hall element, the magnetic field of the Hall trigger is bypassed by the blades, resulting in no Hall voltage and no output signal from the sensor. When the notched part of the trigger wheel enters between the permanent magnet and the Hall element, the magnetic flux enters the Hall element, increasing the Hall voltage, and the sensor outputs a voltage signal. 3. Photoelectric Type. The photoelectric crankshaft position sensor is typically installed inside the distributor. It consists of a signal generator and a signal disc with light holes. The signal disc rotates with the distributor shaft, featuring 360 light-etched slits on the outer ring to generate a signal for a 1° crankshaft rotation angle. Slightly inward, there are six evenly spaced light holes at 60° intervals, producing a signal for a 120° crankshaft rotation angle, with one wider light hole used to generate a signal relative to the top dead center of the first cylinder.

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What are the penalties for driving a car without compulsory traffic insurance?

According to Article 95 of the Road Traffic Safety Law: If a motor vehicle driven on the road does not display the inspection qualification mark or insurance mark, or the driver fails to carry the vehicle license or driving license, the traffic management department of the public security organ shall detain the motor vehicle, notify the party to provide the corresponding license, mark or complete the corresponding procedures, and may impose penalties in accordance with the provisions of Article 90 of this Law (a warning or a fine of not less than 20 yuan but not more than 200 yuan). Compulsory Traffic Insurance for Automobiles: The full name of compulsory traffic insurance is "Compulsory Liability Insurance for Motor Vehicle Traffic Accidents". It is a compulsory liability insurance in which the insurance company compensates for the personal injury, death, and property loss of the victim (excluding the vehicle personnel and the insured) caused by a road traffic accident of the insured motor vehicle within the liability limit. The premium is based on the nationally unified charging standard. However, the price of compulsory traffic insurance varies depending on the type of vehicle, with the main influencing factor being the number of car seats. Compared to the more than 20 exemption clauses of commercial third-party insurance, the exemption scope of compulsory traffic insurance covers losses caused by intentional acts of the victim, property losses of the insured, related arbitration and litigation costs, and some indirect losses caused by accidents, with a much broader coverage. Moreover, regardless of whether the insured vehicle is at fault in the accident, compulsory traffic insurance will compensate within the liability limit. Introduction to Electronic Insurance Policies An electronic insurance policy refers to an electronic policy issued by an insurance company with its electronic signature, using digital signature software and enterprise digital certificates that comply with the PKI system. The insurance policy, abbreviated as the policy, is the formal written proof of the insurance contract between the insurer and the insured. The policy must fully record the rights, obligations, and responsibilities of both parties to the insurance contract. The content recorded in the policy is the basis for the performance of both parties. The policy is proof of the establishment of the insurance contract. Advantages of Electronic Insurance Policies: Saves paper resources, eliminating the need to print insurance proof marks; Saves time and is convenient, not restricted by time or place, with information universally available online at any time, quick and easy; Can apply for reissuance or resending, no need to worry about losing it. If a paper version is needed offline, it can also be printed or mailed; Easy management, with electronic unification making it easier for insurance companies and traffic police departments to manage the insurance information of each vehicle.

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What does it mean when the EPC light is on in a car?

The EPC indicator light can illuminate in two states: during the power-on self-test and under other circumstances. The power-on self-test is an indication that the vehicle is checking the status of all sensors before driving. Generally, if the vehicle is not started after powering on, the light will turn off by itself after about 3 seconds. If the EPC light remains on after the vehicle starts or illuminates under other conditions, the main causes may include faults in the engine intake system, throttle body, fuel system, engine, ECU control unit, or brake lights. Below is a detailed explanation of the reasons for the EPC light illuminating under other circumstances: Engine intake system fault: The EPC light will activate if the engine intake is obstructed or insufficient. Throttle body fault: Carbon buildup is a common issue with the throttle body. Additionally, dirt accumulation can affect intake, triggering the indicator light. Fuel system fault: Examples include substandard fuel, deteriorated fuel, or poor fuel atomization. Engine fault: Insufficient engine pressure or issues with components like the intake valves in the powertrain can also cause the EPC light to illuminate. ECU control unit fault: This may occur due to interference with the vehicle's computer signals or false alarms from the computer. Brake light fault: Situations such as non-functioning brake lights, faulty brake switches, or brake circuit issues can trigger the EPC light. Solutions for when the car's EPC light is on: Troubleshoot the intake system, use fuel of the appropriate grade, and clean the throttle body. Remove carbon deposits from relevant components. Re-flash the ECU with the correct data. If the EPC light comes on, the owner can first try turning off the engine and restarting it to see if the light remains off. If it does not illuminate again, there may be no issue, and the light might have been affected temporarily. If the EPC light stays on or frequently illuminates, the vehicle should be taken to the nearest service center for professional diagnosis and repair to eliminate potential safety hazards. The full English name of EPC is Electronic-Power-Control, which translates to electronic power control. Most people refer to it as the engine electronic stability system. The EPC system primarily includes controllers and sensors related to the powertrain. When sensor data in the system is abnormal, the EPC system will take predefined actions to address the powertrain issues. Common EPC indicator lights typically display two colors: yellow and red. A yellow EPC fault light indicates that the vehicle can still be driven, but it should proceed slowly to a repair point for inspection. A red EPC fault light signifies a more serious issue, and the vehicle should be pulled over immediately, with professional repair services contacted. Continuing to drive under such conditions can severely damage the vehicle's core components or compromise safety.

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How often should a 6-seater new car undergo annual inspection?

Non-commercial 6-seater vehicles are exempt from inspection for the first six years, then inspected every two years from six to ten years. Vehicles over ten years old require annual inspection, and those over 15 years old must be inspected every six months. Commercial 6-seater vehicles must be inspected annually within the first five years, and every six months thereafter. Required documents for vehicle inspection include the vehicle's registration certificate, valid compulsory insurance policy, the owner's ID card, and all outstanding traffic violations must be cleared in advance. Additional notes: Trucks and large/medium non-commercial passenger vehicles must be inspected annually within the first ten years, and every six months thereafter. Motorcycles must be inspected every two years within the first four years, and annually thereafter. Vehicle inspection mainly includes the following items: Exterior inspection: Checks include vehicle lights, body appearance, suspension, sunroof, and tires. It verifies if the lights are functioning properly, if the body color has been changed, and if the suspension has been modified. Emission test: Checks if the vehicle's exhaust emissions meet national standards during high-speed operation. On-road test: Primarily checks the vehicle's braking system, headlights, horn, and chassis. Violation check: All outstanding traffic violations must be resolved before the vehicle can pass inspection. Vehicle inspection can be conducted up to 90 days in advance, but must not be overdue. According to Article 47, Paragraph 4 of the "Motor Vehicle Registration Management Regulations," vehicles that fail to undergo safety technical inspection within the specified period will be issued a warning or fined by the traffic management department. The inspection can only proceed after the fine is paid. Vehicles that fail to undergo inspection on time are not allowed on the road. Driving a vehicle without timely inspection results in 3 penalty points and a fine. If an uninspected vehicle is involved in a traffic accident, the owner bears full or primary liability, and insurance companies will not cover the damages. Driving without timely inspection is considered illegal and may result in vehicle impoundment.

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What emission standard does IV correspond to?

IV corresponds to the China IV emission standard, which is the national fourth-stage motor vehicle pollutant emission standard. Vehicles meeting the China IV standard must reduce pollutants by an additional 30% to 50% compared to China III standards to comply. Automotive emissions refer to harmful gases such as CO, HCNOx, and PM discharged from exhaust. Technologies like improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices are applied to control and reduce vehicle emissions below specified limits. Any new compression-ignition vehicles failing to meet China IV standards cannot be registered.

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Is VI China 6?

VI is China 6, V is China 5, and IV is China 4. China 6 means that the vehicle's emission standards meet the requirements specified in the sixth stage of the national emission standards. It is commonly referred to as China 6 emissions and is a national vehicle emission standard that has been gradually implemented since the end of 2019. Vehicle emission standards refer to regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter emitted from vehicle exhaust. The purpose of setting vehicle emission standards is to curb the production of these harmful gases, enabling automobile manufacturers to improve vehicle emission standards and reduce the generation of harmful gases.

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What Does It Mean When the Check Engine Light Comes On?

What Are the Types of Crankshaft Position Sensors?

What are the penalties for driving a car without compulsory traffic insurance?

What does it mean when the EPC light is on in a car?

How often should a 6-seater new car undergo annual inspection?

What emission standard does IV correspond to?

Is VI China 6?

Which part of the vehicle should the jack be placed under?

What to Pay Attention to When Taking Delivery of a New Car?

Should You Wash the Car Before Applying Window Tint?

Does the Mazda Atenza's Steering Abnormal Noise Affect Safe Driving?