What Causes the Exhaust System Fault in Volkswagen Tayron's Engine?
2 Answers
An emission system fault is most likely caused by issues in the fuel system. You can try starting and turning off the engine three times in a row, or temporarily disconnect the negative terminal of the battery, wait for 30 seconds, and then reconnect it. Another possible cause is poor fuel quality, which requires switching to better fuel. Reasons for the engine exhaust system fault light to illuminate: Most cases are due to damage to the oxygen sensor in the three-way catalytic system or poisoning of the three-way catalytic converter, caused by the poor quality of domestic fuel. If this light comes on while driving, immediately reduce speed and proceed to the nearest service station for inspection. During maintenance: It is necessary to test the fuel pressure system. Connect the fuel pressure gauge and fuel pressure gauge assembly to the fuel line and gauge. Start the engine and let it idle; the fuel gauge reading should be within the range of 270 to 320 kPa. If the pressure exceeds technical specifications, the fuel pressure regulator and fuel filter need to be replaced.
When driving a Volkswagen Tayron, the exhaust fault light comes on. I suspect common causes could be a dirty or faulty oxygen sensor, leading to inaccurate exhaust data and triggering the light. It might also be due to a blocked exhaust pipe or a failed catalytic converter, where excessive carbon buildup obstructs gas emission. In the past, I've encountered issues like aging spark plugs or faulty ignition coils causing incomplete combustion and exceeding exhaust standards. Unstable fuel pump pressure could also be a culprit, such as when the fuel is too dirty. Minor issues like loose wiring or poor contact, while major problems may require component replacement. As soon as the warning light appears, it's best not to continue driving and head to a professional shop for inspection. Long-term neglect can lead to higher fuel consumption, reduced power, and in severe cases, even engine damage. Addressing it early can save a lot of trouble and cost.
