How to Deactivate the Anti-lock Braking System?

What Are the Reasons for White Smoke from a Gasoline Engine?

The reasons for white smoke from a gasoline engine are as follows: 1. High water content in the fuel. There are two main factors causing this situation: one is purchasing low-quality fuel with high water content; the other is a malfunctioning fuel-water separator, which fails to remove water from the fuel. In both cases, fuel containing water burns in the cylinder, producing large amounts of unburned hydrocarbons and water vapor, resulting in white exhaust gas that appears as white smoke. Solution: To address this issue, ensure the purchase of high-quality fuel and regularly inspect the fuel-water separator to ensure it is functioning properly, promptly removing any separated water. 2. Coolant entering the cylinder. Coolant may enter the cylinder due to damage to the cylinder liner or cylinder head gasket. When coolant enters the cylinder, it mixes with fuel under high temperature and pressure, producing large amounts of water vapor, which appears as white smoke when exhausted. Solution: Carefully inspect the cylinder liner and cylinder head gasket for cracks or damage. If damaged, replace them immediately. 3. Faulty fuel injector. In a normally operating engine, fuel in the cylinder is atomized for combustion. If a fuel injector in one cylinder malfunctions, the fuel it sprays forms droplets. When mixed with air and compressed, the temperature rises, causing the fuel to turn into vapor without combustion, resulting in white smoke. Solution: To resolve this issue, use a cylinder cut-off method to identify the faulty injector and replace it. 4. Insufficient fuel injection timing adjustment. In this case, the amount of fuel injected by the injector before combustion is small, reducing the pre-mixed gas volume. This not only slows the combustion speed but also extends the combustion end time, forming white mist. Additionally, delayed fuel injection in the next cycle causes unburned fuel to be exhausted, forming white fuel vapor, which appears as white smoke.

114

Share

What does the TC display in a car mean?

When the TC (Traction Control) system is active, a yellow TC light flashes on the dashboard to alert the driver. The Traction Control System, also known as the Track Control System, relies on electronic sensors to detect when the driven wheels' speed is lower than that of the driving wheels. It then sends signals to adjust ignition timing, reduce throttle opening, decrease fuel supply, downshift, or apply braking to prevent wheel slip. Common causes for the TC light to illuminate include: 1. Solenoid valve malfunction; 2. Dirty engine oil clogging the solenoid valve filter; 3. Wear between actuator gears and impellers causing oil pressure leaks triggering the alarm; 4. Throttle body contamination with opening reaching 20%, leading to ECU misdiagnosing TC system failure.

119

Share

Can Motor Vehicles Undergo Annual Inspection in Another Location?

Except for large passenger buses and school buses, which cannot undergo annual inspection in another location, all other vehicles can. Currently, the traffic management authorities have fully implemented cross-province annual inspections for small cars, trucks, and medium-sized buses. Applicants can directly undergo inspection in provinces other than where the vehicle is registered and obtain the inspection compliance mark without needing to go through the delegated inspection procedure. Large passenger buses and school buses cannot undergo annual inspection in another location and must return to the vehicle's registration location for inspection. Annual inspection time requirements: Small and micro non-commercial passenger vehicles are exempt from inspection for the first 6 years. After 6 years but less than 10 years, they must be inspected every two years; after 10 years but less than 15 years, they must be inspected annually; after 15 years, they must be inspected every 6 months. Commercial passenger vehicles must be inspected annually within the first 5 years; after 5 years, they must be inspected every 6 months. Trucks and large and medium-sized non-commercial passenger vehicles must be inspected annually within the first 10 years; after 10 years, they must be inspected every 6 months. Imported vehicles, like other vehicle types, can undergo regular inspection at any inspection station. Annual inspection precautions: Vehicles that fail the annual inspection must be repaired within a specified time limit. If they still fail after the deadline, the vehicle management office will confiscate their license plates and prohibit further driving. Vehicles that do not undergo annual inspection without reason or fail the inspection are not allowed to drive on the road or be transferred to another location. Vehicles that meet the scrapping conditions or have exceeded the prescribed usage period will not be inspected, and their license plates will be revoked, their records canceled, and they will be scrapped.

115

Share

How to Connect Jumper Cables for a Car Battery?

Here is the method for connecting jumper cables for a car battery: 1. Bring the fronts of both vehicles close together; 2. Connect one end of the red cable to the positive terminal of the rescued vehicle's battery; 3. Connect the other end to the positive terminal of the rescue vehicle; 4. Connect the black cable to the negative terminal of the rescue vehicle; 5. Connect the other end to the negative terminal of the rescued vehicle; 6. After the cables are connected, start the rescue vehicle first, then start the rescued vehicle. Here are some precautions for jump-starting a car battery: 1. When performing any operations on the battery, both the vehicle and the rescue vehicle must remain turned off. 2. The order for connecting the jumper cables is to first connect the dead battery's positive terminal to the rescue vehicle's positive terminal, then connect the dead battery's negative terminal to the rescue vehicle's negative terminal. 3. Never reverse the positive and negative terminals of the battery. For safety during installation and removal, strictly follow the order of connecting positive first then negative, and removing negative first then positive.

117

Share

Is the 2019 Sylphy compliant with China 6 emission standards?

The 2019 Sylphy was launched in September 2018 and meets the China 6 emission standards. Below is an introduction to the 2019 Nissan Sylphy: 1. The new car has almost no changes in appearance and dimensions, featuring a three-horizontal-bar shield-shaped front grille, with lines on both sides of the engine hood extending towards the center, giving the overall design a sense of strength. 2. The new car is equipped with practical configurations such as ABS, EBD, an onboard computer display, and a brake assist system. It adopts a front MacPherson strut independent suspension and a rear torsion beam suspension. 3. The 2019 Sylphy is powered by a 1.6L naturally aspirated engine with a maximum power of 93kW and maximum torque of 154Nm, and a 1.8L naturally aspirated engine with a maximum power of 102kW and maximum torque of 174Nm.

102

Share

What is the emission standard of the Classic Focus?

The emission standard of the Classic Focus is China IV. Here are the relevant details: 1. China IV is the national fourth-stage motor vehicle pollutant emission standard. The main pollutants emitted by vehicles include HC, NOx, CO, PM, etc. By applying technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard controls and reduces vehicle emissions to below specified levels. 2. The Classic Focus is a compact car under Changan Ford, with exterior dimensions of 4647mm in length, 1810mm in width, and 1468mm in height, a wheelbase of 2705mm, and a body structure of a 4-door, 5-seater sedan.

103

Share