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What to Do When the Engine Malfunction Light Stays On?

1 Answers
IsabellaLynn
07/25/25 6:46am
Solutions for a continuously illuminated engine malfunction light: 1. Clean the entire fuel system using fuel additives; 2. After engine cleaning, use higher-octane gasoline; 3. Improve fuel cleanliness by using high-quality fuel additives; 4. Replace the catalytic converter. Reasons for the engine malfunction light staying on: 1. Poor quality or substandard gasoline; 2. Faulty oxygen sensor; 3. Malfunctioning air flow sensor; 4. Spark plug carbon buildup; 5. Engine knocking; 6. Engine misfire. Engine maintenance methods: 1. Use high-quality engine oil; 2. Regularly clean radiator scale; 3. Maintain appropriate RPM levels; 4. Use qualified coolant.
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Does the Touareg fuel tank cover have an emergency release?

The Touareg fuel tank cover does not have an emergency release. The method to open the Touareg fuel tank cover is as follows: First, open the driver's door, lift the release switch located at the front left of the door, and wait until you hear the sound of the fuel tank cover opening. Then, turn the inner fuel tank cover counterclockwise to open it. The fuel tank cover refers to the box on the car used for storing gasoline. It is square in shape, made of stainless steel, and has excellent sealing. The fuel tank cover only has a small circular opening for easy storage and is usually located at the rear of the vehicle. The Touareg is a new mid-to-large SUV under SAIC Volkswagen. In terms of body dimensions, the Touareg measures 5039mm in length, 1989mm in width, and 1773mm in height.
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What are the license plate codes for various regions in Henan?

Henan regional license plate codes are: YuA and YuV for Zhengzhou, YuB for Kaifeng, YuC for Luoyang, YuD for Pingdingshan, YuE for Anyang, YuF for Hebi, YuG for Xinxiang, YuH for Jiaozuo, YuJ for Puyang, YuK for Xuchang, YuL for Luohe, YuM for Sanmenxia, YuN for Shangqiu, YuP for Zhoukou, YuQ for Zhumadian, YuR for Nanyang, YuS for Xinyang, YuU for Jiyuan. More related information is as follows: 1. The license plate code consists of 2 characters, combining a Chinese character and an English letter. 2. The Chinese character is the abbreviation of the province, autonomous region, or municipality directly under the central government, while the English letter represents the code of the vehicle management office. The license plate number consists of 6 characters, composed of Arabic numerals or a combination of Arabic numerals and English letters.
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How much horsepower does the Infiniti QX50 engine have?

Infiniti QX50 engine horsepower introduction: The low-power version of the Infiniti QX50 engine, a 2.0-liter turbocharged engine, has 245 horsepower, while the high-power version of the 2.0-liter turbocharged engine has 272 horsepower. The following are the relevant details: 1. The low-power version 2.0-liter turbocharged engine has a maximum power of 180 kW, a maximum torque of 380 Nm, a maximum power speed of 5,600 rpm, and a maximum torque speed of 4,400 rpm. 2. The high-power version 2.0-liter turbocharged engine has a maximum power of 200 kW, a maximum torque of 380 Nm, a maximum power speed of 5,600 rpm, and a maximum torque speed ranging from 4,400 to 4,800 rpm. 3. Both engines are equipped with variable compression ratio technology and hybrid injection technology, using aluminum alloy cylinder heads and blocks. Both engines are paired with a CVT transmission.
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How to Use the Differential Lock on a Truck?

The usage method of the differential lock is as follows: 1. Differential Lock Engagement: The inter-axle and inter-wheel differentials of the drive axle are controlled by the differential lock switch on the dashboard in the cab. When the vehicle is stuck on muddy or slippery roads, press the differential lock switch at low speed or when stationary, release the accelerator pedal, and steer appropriately. The indicator light will illuminate, indicating the differential is properly engaged. 2. Differential Lock Disengagement: When road conditions improve (the road becomes better), press the differential lock switch while driving at low or constant speed, release the accelerator pedal, and steer appropriately. The indicator light will turn off, indicating the differential has disengaged. The differential locks should be used in the following sequence: 1. First, engage the inter-wheel differential lock. 2. If the inter-wheel differential lock is ineffective, then engage the inter-axle differential lock. 3. When the vehicle is heavily loaded and climbing a steep slope (≥20%), engage only the inter-axle differential lock, as the inter-wheel differential lock is not needed in this scenario.
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What does the SVS on the dashboard mean?

The SVS on the dashboard is a malfunction indicator light, which is a warning light that appears when the ECU or TCU of an electronically fuel-injected vehicle detects an issue with the engine or automatic transmission. All electronically fuel-injected vehicles are equipped with an SVS malfunction indicator light. For manual transmission vehicles, it indicates an engine malfunction; for automatic transmission vehicles, it indicates issues with both the engine and the automatic transmission. It is recommended to visit a repair shop for inspection as soon as possible. The SVS light is a standard indicator in the automotive industry, responsible for warning about abnormalities in the powertrain system and prompting users to have the vehicle serviced. When the powertrain system's self-diagnosis detects an abnormality, the SVS light will alert the user to have the vehicle inspected. The SVS light warning may originate from the engine, transmission, or gear shift control mechanism.
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What does o/d off light mean?

o/d-off warning light indicates that the overdrive of the car is in the off state. o/d is the overdrive. When the od switch is set to off, the transmission can only shift up to 3rd gear, that is, 4th gear has been restricted from shifting into. Conversely, when the gear lever is in the d position and the o/d switch is set to on, the transmission can shift up to 4th gear. The key role of o/d is to limit the gear of the transmission and prohibit the transmission from upshifting. This function can control the gear of the car within 1st, 2nd, and 3rd gears, while limiting the engine speed, making it convenient to overtake during driving. When the car needs to overtake, pressing the od button of the car will instantly drop the gear of the transmission to third gear, while the engine speed will rise, the torque will increase instantly, and the speed of the car will also be greatly improved. Using this function can reduce unnecessary switching of internal shift solenoids.
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