What is the working principle of a spark plug?

1 Answers
StMadeline
07/29/25 11:51am
The working principle of a spark plug is that the electrode of the spark plug generates a pulsed high voltage through repeated and continuous ignition, which breaks down the air between the two electrodes of the spark plug, creating a spark and causing an explosion to ignite the mixed gas in the cylinder. Subsequently, the engine starts to operate. Spark plugs are consumable items and need to be replaced regularly. Choosing spark plugs with different heat values can easily affect the engine's output, and it is even possible for the spark plug to be directly damaged. The heat value of a spark plug is represented by numbers, and different brands have different heat values. Each brand's heat value corresponds to specific vehicle models.
Was this review help?
5
2
Share
More Forum Discussions

Does the Emgrand GS come with a sunroof?

Emgrand GS comes with a sunroof, but it cannot be opened. It is a large piece of glass, also known as a sunshade. The car sunroof is installed on the roof, which can effectively circulate the air inside the car and increase the intake of fresh air. At the same time, the sunroof can also broaden the view and meet the needs of mobile photography and videography. The Emgrand GS is a model under the Geely Group, belonging to a crossover SUV. The dimensions of this car are 4440mm in length, 1833mm in width, and 1560mm in height. The car is equipped with sporty front and rear bumpers, an inverted trapezoidal chrome exhaust pipe decoration, light-guided LED daytime running lights, a panoramic sunroof, red brake calipers, and other configurations.
3
2
Share

What does the ASR warning light indicate?

ASR warning light indicates a fault in the vehicle's ASR system. The ASR system is called the Snow/Slip Control System, also known as the Traction Control System. Situations when the ASR warning light comes on: 1. Maintenance or removal of tires may cause the ASR warning light to illuminate; 2. Insufficient tire pressure or air leakage issues, requiring a check for any leaks or low tire pressure; 3. In colder climates, the vehicle's grip decreases, especially on icy roads causing wheel slippage, which can also trigger the ASR warning light; 4. If the vehicle is equipped with an ABS system, it may also cause an ASR fault.
17
1
Share

How to Turn Off the Roof Light in a Golf?

The method to turn off the roof light in a Golf: 1. Open the middle door of the Golf and sit in the middle of the back row; 2. Look up at the roof to find the interior rear light that is on, as shown in the red circle in the diagram; 3. Locate the lit light on the left side of the circle in the Golf interior rear light diagram, then gently press the switch in the box next to the light to turn off the roof light. The Golf is a compact car under the Volkswagen brand, with dimensions of 4259 mm in length, 1799 mm in width, and 476 mm in height, and a wheelbase of 2637 mm. The car's LED headlights feature a double-L design, and LED daytime running lights are standard across all models; the chrome trim on the grille integrates the brand logo with the daytime running lights.
17
4
Share

Is 2.0 Tire Pressure Normal?

2.0 tire pressure is not normal. Generally, the tire pressure of most vehicles is around 2.3 to 2.5 bar. It is recommended to inflate to the standard tire pressure. Driving with low pressure not only accelerates tire wear but also increases fuel consumption. Low-pressure driving also increases the risk of tire blowouts, making it very dangerous. Therefore, it is advised not to drive with low tire pressure. The standard tire pressure for cars is between 2.4 and 2.5 bar, which is the standard specification for small passenger vehicles. As long as the tire pressure is within this range, it is safe. However, the tire pressure specified by different car manufacturers may vary slightly. Therefore, to determine the exact standard tire pressure, it is best to refer to the vehicle's maintenance manual, which provides detailed instructions on the recommended tire pressure.
10
3
Share

Is frequent oil change good for the engine?

Frequent oil changes are beneficial for the engine, as new oil undoubtedly performs better than used oil in all aspects, naturally providing greater benefits to the engine. Engine oil operates in a high-temperature and high-pressure environment over time, leading to chemical reactions within its components. This results in a small amount of chemical elements remaining in the oil, which reduces its cooling and lubricating properties, thereby accelerating engine wear. Engine oil, also known as engine lubricant, serves multiple purposes including lubrication and friction reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. It is composed of base oil and additives. The base oil is the primary component of lubricating oil, determining its fundamental properties, while additives compensate for and enhance the shortcomings of the base oil's performance.
8
5
Share

How to Adjust the Clock on a Passat?

The method to adjust the clock on a Passat is as follows: 1. Press the left button on the dashboard once, and the hour on the dashboard will start flashing. Adjust it to the correct time. 2. Then press the right button on the dashboard to adjust the minutes in the same way. The quartz clock on the center console will follow the adjustment. The Passat is a mid-sized sedan designed by Volkswagen AG in Germany. The dimensions of this car are 4933mm in length, 1836mm in width, and 1469mm in height, with a wheelbase of 2871mm. In terms of power, the Passat is equipped with a 1.5-liter four-cylinder overhead camshaft engine, delivering a maximum horsepower of 85. The car features front-wheel drive and can reach a top speed of 169 km/h.
13
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.