What Causes the Yellow Engine Warning Light on the Dashboard?

1 Answers
KennedyAnn
07/30/25 1:13am
The reasons for the yellow engine warning light on the dashboard are: 1. When there is poor contact or signal interruption in the water temperature sensor, crankshaft position sensor, air flow sensor, intake temperature sensor, or oxygen sensor, the vehicle's ECU cannot accurately obtain engine fault data; 2. A dirty or uncleaned air filter affects the vehicle's air intake, causing blockages; 3. Faults in the engine's spark plugs, ignition coils, fuel pump, or clogged fuel lines can lead to poor combustion of the air-fuel mixture, resulting in engine carbon buildup or knocking issues, which trigger the yellow engine warning light on the dashboard.
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