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What are the functions of a fuel injector?

1 Answers
McEliza
07/29/25 9:59am
The fuel injector mainly consists of three parts: the starting circuit, cold fuel injector, and thermal time switch. It is a device that injects fuel into the intake manifold during cold engine starts to enrich the air-fuel mixture and improve the engine's cold start performance. The functions of the fuel injector are as follows: 1. Pressure regulation: Increase fuel pressure to 10MPa~20MPa. 2. Timing control: Control the injection timing to spray fuel and stop spraying according to the specified time. 3. Quantity control: Adjust the amount of fuel injected based on the diesel engine's operating conditions to regulate the engine's speed and power.
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Where is the OBD interface of Dongfeng Fengguang 330 located?

The OBD interface of Dongfeng Fengguang 330 is located inside the glove compartment on the passenger side. Additional relevant information is as follows: 1. OBD refers to the On-Board Diagnostics system. When a vehicle malfunctions, the warning light on the dashboard will illuminate, and the On-Board Diagnostics system will generate corresponding fault codes, which are uploaded to the vehicle's computer. This helps repair personnel quickly identify the issue. 2. The dimensions of Dongfeng Fengguang 330 are 4365mm in length, 1720mm in width, and 1790mm in height, with a wheelbase of 2725mm, front track of 1425mm, and rear track of 1445mm.
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What are the types of automotive drive systems?

Modern passenger vehicles feature various drive configurations, including Front-engine Front-wheel drive (FF), Front-engine Rear-wheel drive (FR), Front-engine All-wheel drive, Mid-engine Rear-wheel drive (MR), Mid-engine All-wheel drive, Rear-engine Rear-wheel drive (RR), and Rear-engine All-wheel drive. Below are details about these drive systems: 1. The drive system refers to the arrangement of the engine and the number and position of the driven wheels. 2. Front-engine Front-wheel drive (FF) is the most prevalent configuration in passenger cars, though it is rarely used in trucks and buses. 3. This layout is predominantly found in passenger vehicles with engine displacements below 2.5L.
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How to Avoid Crossing the Line in Curve Driving for Subject 2?

Remember the mantra: "Left point aligns with right line, right point aligns with left line". Here is the relevant information: 1. The left and right points refer to the left and right top corners of the car's front. This means when turning in a certain direction, use that corner to follow the opposite side's road edge line. 2. Before entering the curve, slow down in advance. If the speed is too fast, it will be difficult to observe and steer simultaneously, making it easy to cross the line and fail. Also, follow the principle of taking the outer line: try to choose a route with a larger turning radius. For example, if preparing to turn left, the vehicle should stay closer to the right side.
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What suspension does the Skoda Superb use?

Skoda Superb uses a MacPherson independent suspension for the front and a four-link independent suspension for the rear. The MacPherson independent suspension is one of many suspension systems, widely applied in the market due to its simple structure, low cost, and decent comfort. The four-link independent suspension consists of links, shock absorbers, and damping springs, ensuring a certain level of comfort. Additionally, the multiple links help keep the wheels perpendicular to the ground, reducing body tilt. The Skoda Superb is a business vehicle under the Skoda brand, retaining many design elements from the VisionC concept car. The use of straight lines and chrome materials makes it look more fashionable and dynamic, appealing more to younger consumers.
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What is the operation method of braking?

The operation method of braking is: 1. In case of abnormal brake pedal, use engine braking and shift to a lower gear; 2. In traffic congestion, gently press the brake pedal; 3. On rainy or muddy roads, lightly press the brake pedal continuously; 4. In emergency situations, firmly press the brake pedal immediately and then release it slowly, followed by continuous gentle pressing and releasing of the brake pedal. The maintenance methods for brakes are: 1. High-temperature protection to prevent corrosion of the braking system and avoid brake pads from seizing due to high temperatures; 2. Clean oil stains from brake discs and brake drum components to ensure good heat dissipation of the brake discs; 3. Regularly replace brake fluid; 4. Regularly check the thickness of brake pads or brake shoes.
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What is the original tire model for the 10th generation Accord?

The 10th generation Accord comes with three original tire models: 225/50R17, 215/60R16, and 235/45R18. The Accord is a mid-size sedan under Honda, equipped with three engine options: a 2.0L naturally aspirated engine, a low-power 1.5L turbocharged engine, and a high-power 1.5L turbocharged engine. The 10th generation Accord is a 4-door, 5-seater sedan launched by Honda, featuring a youthful and sporty exterior, a premium chassis, and spacious interiors. Its front fascia boasts a stylish and cool design with hints of a sports car. The LED headlights adopt a wing-shaped design with intricate detailing, presenting a refined and layered appearance, complemented by blue light sources.
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