What is the speed limit for straight-line driving in Subject 3?

What are the reasons for the engine light icon to illuminate?

The main reasons for the engine light icon to illuminate are: 1. Fuel quality. The anti-knock property of gasoline is represented by the octane number. The higher the octane number, the better the anti-knock property. For example, 97-octane gasoline has an octane number of no less than 97. Leaded gasoline can cause lead poisoning in the oxygen sensor, making fuel quality a primary cause of insufficient engine combustion, which in turn triggers the engine fault light. 2. Poor engine combustion state. In automotive design, to ensure the engine operates in good condition and maintains a normal working lifespan, an oxygen sensor is installed to monitor the engine's combustion state. If the combustion state is poor, such as excessively high levels of hydrocarbons (HC), carbon monoxide (CO), or nitrogen oxides (NO), these indicate bad combustion states that not only pollute the environment but also lead to fuel waste and excessive engine wear. 3. Malfunctioning carbon canister solenoid valve. The solenoid valve receives ECU commands to control the air intake. If the solenoid valve is stuck in an open position, it causes the gas entering the intake pipe to become too rich, ultimately leading to an overly rich air-fuel mixture in the engine. This results in excessive exhaust emissions, prompting the oxygen sensor to send a feedback signal to the ECU, which then illuminates the engine fault light.

2

Share

What causes the BMW seatbelt pretensioner to fail?

It could be due to a blown seatbelt fuse. The function of the seatbelt is to reduce the likelihood of death or serious injury in traffic collisions by decreasing the secondary impact force that poses an internal collision risk. Here is the relevant information: 1. Hazards of not wearing a seatbelt: During a vehicle accident or emergency braking, a significant inertial force is generated. Depending on the driving speed and impact severity, this inertial force varies. It causes the driver and passengers to collide with objects inside the car, such as the steering wheel, windshield, seat backrest, and doors, which can easily result in severe injuries or even eject occupants from their seats or out of the vehicle. 2. Seatbelt introduction: A seatbelt is a vehicle safety device designed to protect occupants from harmful movements caused by collisions or sudden stops. By properly positioning the occupant, it ensures the maximum effectiveness of airbags and prevents occupants from being ejected from the vehicle or experiencing rollovers during a collision.

5

2

Share

Should You Fasten the Seat Belt or Start the Engine First in the Driving Test Part 3?

During the Driving Test Part 3, you should fasten the seat belt before starting the engine. Below is relevant information about Driving Test Part 3:1. Introduction: Driving Test Part 3, also known as the road test, is part of the motor vehicle driver's license assessment. It refers to the road driving skills and safe civilized driving knowledge test in the motor vehicle driver's examination.2. Test Content: The road driving skills test varies for different types of vehicles, but generally includes: preparation before driving, starting, driving straight, shifting gears, changing lanes, pulling over, going straight through intersections, turning left at intersections, turning right at intersections, crossing pedestrian crosswalks, passing school zones, passing bus stops, meeting oncoming vehicles, overtaking, making U-turns, and driving at night.

18

2

Share

What causes the unstable idle speed of the classic Focus?

The reasons for the unstable idle speed of the classic Focus are as follows: Dirty throttle body: Impurities in the air and sludge from gasoline cause the throttle body to become dirty, changing the cross-sectional area of the passage and making it impossible to precisely control the air intake. Carbon buildup on the throttle: Carbon buildup on the throttle and insufficient atomized combustion from the fuel injectors result in fluctuating idle speeds. Clogged exhaust pipe: A clogged exhaust pipe leads to poor exhaust flow. Insufficient vacuum: Air leaks cause insufficient vacuum, resulting in low pressure in the 5th cylinder and severe automatic wear. It is necessary to visit a 4S shop or repair shop as soon as possible for inspection and repair.

8

5

Share

How long is the lifespan of the Volkswagen EA113 engine?

The Volkswagen EA113 engine can generally last up to around 300,000 kilometers. As long as you pay attention to regular engine maintenance and care during daily use, and the car hasn't been involved in any major accidents that could damage the engine, it can serve you well for 20 years without issues. Here are some key points to note regarding car engine maintenance: Regular cleaning: Periodically remove carbon deposits from the engine to prevent interference with normal fuel delivery. Timely oil changes: Replace the engine oil approximately every 5,000 kilometers driven. Avoid aggressive driving: Refrain from harsh driving behaviors to protect the engine's lifespan.

19

5

Share

What is the displacement of the Cadillac 28t?

Cadillac 28t has a displacement of 2L, where 28t refers to the 2.0T-279 horsepower high-power version. Specific details are as follows: Cadillac ATS-L-28T In the Cadillac ATS-L-28T, the "2" indicates that the engine displacement of this model is greater than or equal to 2.0L but less than 3.0L; the second digit represents the power level, denoted by Arabic numerals 0-9, such as the "8" in 28T, where a higher number indicates greater engine power; a single uppercase letter indicates the engine type, with "T" standing for a high-performance turbocharged engine.

8

1

Share

What is the speed limit for straight-line driving in Subject 3?

What are the reasons for the engine light icon to illuminate?

What causes the BMW seatbelt pretensioner to fail?

Should You Fasten the Seat Belt or Start the Engine First in the Driving Test Part 3?

What causes the unstable idle speed of the classic Focus?

How long is the lifespan of the Volkswagen EA113 engine?

What is the displacement of the Cadillac 28t?

Where is Cylinder 1 Located in the Mazda 3 Axela?

How many times do you reverse into the garage in Subject 2?

Does a few days' delay in renewing car insurance have any impact?

What is the Emission Standard of Lavida?