What are the symptoms of a faulty fuel metering unit?

Should hail dents on the front hood be repaired?

It is not recommended to repair hail dents on the front hood. From a cost-performance perspective: They only affect the appearance and have no impact on the car's performance or future use. The repair cost is high, as properly fixing these small dents requires first performing sheet metal work and then repainting. From an aesthetic perspective: Repainting after sheet metal work requires both technical skill and a suitable working environment. For all-aluminum hoods, the repainted areas often have noticeable color differences and may bubble after a short time. Therefore, it's best to leave them untreated unless they are deemed too unsightly. For repairs, you can try paintless dent repair (PDR) technology, which fixes body dents without damaging the original car paint. The principle is quite simple—it uses optics and mechanics, leveraging the lever principle to gradually restore dents of varying depths to their original factory condition.

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What does the yellow triangle displayed on the car represent?

The yellow triangle displayed on the car represents the Traction Control System (TCS) indicator light. Functions of the Traction Control System indicator light: The Traction Control System indicator light is a yellow triangle with an exclamation mark in the middle. This indicator light is related to the driving force and has two functions: it either lights up to remind the driver to turn off the traction control system or indicates that there is a problem with the TCS. Different car dashboards: Dashboards vary among different car models. However, conventional car dashboards generally include a speedometer, tachometer, oil pressure gauge, water temperature gauge, fuel gauge, and charging gauge. Beneath the surface of modern car dashboards, there are various indicator or warning lights, such as a coolant level warning light, SRS (airbag) warning light, etc.

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Can you temporarily stop on the highway emergency lane to urinate?

You cannot temporarily stop on the highway emergency lane to urinate. Stopping on the emergency lane of the highway is not allowed: According to relevant regulations, stopping on the emergency lane of the highway is generally not permitted, except under special circumstances. For example, if the vehicle breaks down, temporary stopping is allowed in such cases. Violating road traffic safety laws will result in penalties: Stopping, driving, or overtaking on the highway emergency lane violates road traffic safety laws and will be subject to penalties. According to Article 90 of the Road Traffic Safety Law: Non-emergency stopping on the highway emergency lane by vehicles other than commercial passenger vehicles will result in a 6-point penalty; non-emergency stopping on the highway emergency lane by commercial passenger vehicles will result in a 12-point penalty.

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What is the normal idle speed for a new car?

The normal idle speed for a new car should generally range between 600-1000 RPM. Excessive engine carbon buildup: This is the most common cause. When fuel combustion is incomplete, or when paraffin and gum residues from gasoline remain, impurities can accumulate in components like fuel injectors and throttle bodies, eventually leading to carbon deposits over time. Ignition system malfunction: When the system operates abnormally, spark plugs are prone to misfiring, which not only increases fuel consumption and reduces power output but also causes irregular idle speed. Engine mount deterioration: As rubber components, engine mounts are highly susceptible to aging and damage. Their vibration-dampening effect on the engine inevitably weakens, resulting in abnormal idle conditions.

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Is a tire pressure of 209 kPa normal?

The displayed tire pressure of 209 kPa for a car's tires is not within the normal range. According to the international GBT2978-2008 standard, the recommended tire pressure for standard tires is 2.4-2.5 bar. A pressure of 2.0 bar is below the minimum value of the standard tire pressure, so it is abnormal. Hazards of low tire pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; causes the steering wheel to become heavy and prone to deviation, among other factors detrimental to driving safety; increases the movement of various parts of the tire, leading to excessive rolling and abnormal heat generation in the tire; reduces the functionality of the cords and rubber, causing delamination or cord breakage, and excessive friction with the rim, resulting in damage to the tire bead area and abnormal wear. Hazards of high tire pressure: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates localized wear of the tread pattern in the center of the tire, shortening the tire's lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components.

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Do Electric Vehicles Consume More Power at High Speed or Low Speed?

Electric vehicles consume more power at high speed. Electric vehicles are more energy-efficient at low speed and consume more power at high speed: The working efficiency of an electric motor in a pure electric vehicle is almost unaffected by its rotation speed, and it does not lose energy through a transmission. Therefore, pure electric vehicles are very energy-efficient at low speeds. When running at high speed, although the motor efficiency can be maintained at 80%-90%, air resistance increases with the square of the speed. The higher the speed, the greater the air resistance the electric vehicle needs to overcome, resulting in significantly higher power consumption at high speeds compared to low speeds. Pure electric vehicles can recover kinetic energy at low speed: Another technology that makes pure electric vehicles energy-efficient at low speed is kinetic energy recovery. During frequent deceleration at low speeds, the vehicle recovers energy each time and transmits it back to the battery. The most energy-efficient speed for a pure electric vehicle is low speed, with an energy efficiency of 80%-90%. Combined with 20% from kinetic energy recovery, the energy-saving effect is surprisingly good.

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What are the symptoms of a faulty fuel metering unit?

Should hail dents on the front hood be repaired?

What does the yellow triangle displayed on the car represent?

Can you temporarily stop on the highway emergency lane to urinate?

What is the normal idle speed for a new car?

Is a tire pressure of 209 kPa normal?

Do Electric Vehicles Consume More Power at High Speed or Low Speed?

Does the Audi A6 Belong to the B-Class Car Category?

How to Add Windshield Washer Fluid to the Buick New Excelle?

What does 2.1 bar mean

Where is the VIN number located on the Nissan NV200?