Why does the engine malfunction light come on after flooring the accelerator?

1 Answers
VonTalia
07/30/25 3:34am
Flooring the accelerator may cause the engine malfunction light to illuminate due to poor fuel quality. Here are other potential reasons for the light to come on: 1. Carbon deposits in the intake tract or piston crown can lead to poor atomization: This results in incomplete combustion, triggering the warning light. 2. Cold engine starts: Particularly when ambient temperatures drop sharply, insufficient light may occur due to ECU temperature calibration issues during startup. However, the condition stabilizes once temperatures drop to a certain level without fluctuation. 3. Excessive engine mileage: Weakened spark plug performance characteristics may activate the warning light, suggesting a need for professional inspection at a repair shop.
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