What does it mean when the ignition warning light turns red and then off?

1 Answers
AuroraMarie
07/29/25 2:28pm
Car ignition warning light usually comes on due to poor fuel combustion in the engine cylinders. Here are the relevant explanations: 1. Oxygen sensor: In automotive design, to ensure the engine operates in good condition and maintains normal working lifespan, an oxygen sensor is installed to monitor the engine's combustion status. Once poor combustion is detected, such as excessively high levels of hydrocarbons, carbon monoxide, or nitrogen oxides, these indicate bad combustion states that not only pollute the environment but also lead to fuel waste and excessive engine wear. 2. Solution: If the ignition warning light comes on, it is recommended to visit a repair shop for professional mechanics to diagnose and fix the issue.
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