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What is the reason for the engine yellow light to come on?

1 Answers

SanLilah

07/30/25 6:55am

The reasons for the engine yellow light to come on are: 1. Sensor issues, including water temperature, intake air temperature, oxygen sensor, etc. When these sensors are damaged, have poor contact, or signal interruption, it will cause the engine fault light to come on; 2. Maintenance issues, vehicles have a certain maintenance cycle. If the owner does not perform maintenance on schedule, combined with poor driving habits, it will increase the burden on the engine operation and cause the fault light to come on; 3. Poor combustion of the mixture, engine spark plug failure, ignition coil failure, fuel pump failure, fuel line blockage, etc. will all cause the engine fault light to come on. The engine components include: the engine block, crankshaft and connecting rod mechanism, valve train and intake and exhaust system, supply system and governor, starting device, cooling system, and lubrication system.

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