Why Do Diesel Vehicles Need to Add Urea?

What are the benefits of modifying a car's exhaust system?

Modifying a car's exhaust system is primarily done for aesthetic appeal and sound enhancement, such as altering the mid and rear sections. Secondly, it can involve adjusting exhaust backpressure and reprogramming the ECU to improve performance. Thirdly, some modifications are purely for visual appeal, focusing on the exhaust tips. Here is more detailed information: 1. Modifying only the exhaust backpressure: Changing only the exhaust backpressure to a straight-through design can increase the upper limit of the engine's net power output at high RPMs. However, the improvement is not significant, typically ranging from 5% to 10%. Essentially, this modification recovers the power lost due to the factory exhaust backpressure, but the effect is only noticeable at high RPMs. 2. Modifying backpressure along with ECU reprogramming: This approach marks the entry into serious performance modifications. Reprogramming the ECU can increase net power output, and when combined with reduced backpressure, it further expands the range of net power output, leading to a more substantial improvement in the vehicle's performance.

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Is it mandatory to install a dash cam in the car?

There is no mandatory requirement for dash cams, so you don't have to install one. Here is more relevant information: 1. Benefits of installation: A dash cam can continuously record driving footage, which can be useful in cases of scratches, fraud, or traffic accidents. It can serve as evidence for traffic police to determine responsibility. If you want to avoid getting entangled in traffic disputes, it is recommended to install a dash cam. 2. Steps to install a dash cam: Remove the rearview mirror casing, detach the rearview mirror, slide the two metal clips downward, disconnect the rearview mirror cable after removing the casing, unplug the connector for the anti-glare rearview mirror, disassemble the dash cam mount, align the metal clips on both sides of the dash cam mount with the slots on the rain sensor mount, and push evenly upward on both sides until it slides to the bottom.

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What is the technique for kick-activated trunk opening?

The method to activate the sensor-based power tailgate is to perform a kicking motion beneath the sensor, which can generally be divided into two types: the straight kick and the sweeping kick. The details are as follows: 1. Kicking motions: (1) Straight kick: Lift your foot from the ground to about 20 centimeters below the bumper sensor, allowing the sensor to recognize the kicking motion. (2) Sweeping kick: Lift your leg and sweep it horizontally beneath the sensor to trigger the power tailgate switch. 2. Principle: The kick-activated power tailgate, also known as the sensor-based power tailgate, allows the trunk to be opened hands-free through sensor activation. The principle behind the kick-activated power tailgate involves analyzing signal changes from two antennas installed at different positions to trigger the power tailgate switch.

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What are the troubleshooting methods for unstable car idling?

There are several methods to troubleshoot unstable car idling: 1. Visual inspection under the engine hood: Observe the engine operation, the degree of vibration, and the swing amplitude of the engine tachometer needle to see if it deviates from the expected idle speed. Determine whether it is normal idle vibration or load idle vibration (such as when the air conditioning, lights are turned on, gear is engaged, or steering wheel is turned). Check for any abnormalities in external engine components, whether vacuum tubes are detached or damaged, if electrical connectors are loose, and if there are any leaks of oil, water, air, or electricity. Also, check if the exhaust pipe emits irregular sounds (indicating poor combustion), black smoke, or a raw gasoline smell, and ensure the throttle cable is properly adjusted. 2. Query and analyze fault codes: read codes – clear codes – run – read codes again: Refer to the fault code list in the repair manual to understand the causes, effects, and troubleshooting methods for each fault code. Do not ignore intermittent fault codes, as unstable idling often coincides with their occurrence. 3. Read and analyze data blocks: Data blocks provide real-time data during engine operation. Correctly analyzing data blocks reflects the technician's skill level. Analyze the reasons for any incorrect data.

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What is the normal fuel consumption per kilometer for a 125cc motorcycle?

Common 125cc cross-type motorcycles generally consume about 2.2 liters of fuel per 100 kilometers, while 125cc scooters consume around 3 liters per 100 kilometers. Notes on motorcycle maintenance: 1. Pay attention to daily maintenance: In the daily maintenance of scooters, frequent oil changes and air filter replacements are crucial. Oil should be changed approximately every 1,500 kilometers (using high-quality oil), and the air filter should be replaced every 2,000 kilometers. 2. Choose high-quality tires: Durable tires are a good choice, and since scooters have a lower chassis, tires are particularly important. 3. Pay attention to speed and force when riding: Avoid frequent stopping and accelerating while riding; maintaining a relatively steady speed is essential. A speed between 40-60 km/h is most appropriate.

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How far can you drive when the fuel gauge light comes on?

When the car's fuel gauge light comes on, the vehicle can generally travel approximately 30-60 kilometers. 1. Hazards of driving with the fuel light on: Avoid driving with the fuel light on as much as possible, as prolonged driving in this state can harm the vehicle. When the fuel warning light illuminates, it indicates that the fuel level has dropped below the fuel pump. The exposed fuel pump begins to overheat due to the lack of fuel for cooling. If you continue driving at this point, the fuel pump becomes even more exposed, exacerbating the overheating. Continuing to drive when the warning light is on (or even until the fuel is completely depleted) can cause significant damage to the car. 2. Specific driving distance: Some vehicle models have higher fuel consumption, such as SUVs, which may consume over 15 liters per 100 kilometers, resulting in a shorter driving range. On the other hand, certain Japanese cars are very fuel-efficient, possibly consuming only 5 liters per 100 kilometers, allowing for a longer driving range.

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Why Do Diesel Vehicles Need to Add Urea?

What are the benefits of modifying a car's exhaust system?

Is it mandatory to install a dash cam in the car?

What is the technique for kick-activated trunk opening?

What are the troubleshooting methods for unstable car idling?

What is the normal fuel consumption per kilometer for a 125cc motorcycle?

How far can you drive when the fuel gauge light comes on?

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