What are the reasons for the exhaust emission warning light in the Tiguan coming on?

[StPaige]

The reasons for the exhaust emission warning light in the Tiguan coming on include false faults in the engine, damage to the oxygen sensor in the three-way catalytic system or poisoning of the three-way catalytic converter due to domestic fuel quality, or faults in the fuel pump or ignition system. Below is relevant information about the Tiguan: 1. Introduction: The Volkswagen Tiguan is a car produced by SAIC Volkswagen. This compact SUV was first introduced to consumers at the 2009 Guangzhou Auto Show. The SAIC Volkswagen Tiguan offers four versions with seven models in total: Urban Edition, Trendline, Elite, and Flagship. 2. Safety Features: The Volkswagen Tiguan comes standard with ESP body stability system, EBD electronic brake force distribution, and ASR traction control. Features that are less common, such as EDS electronic differential lock, EPB electronic parking brake, automatic parking function, and TPR tire pressure monitoring system, are all standard configurations in the Tiguan, demonstrating Volkswagen's strong emphasis on safety.