What Causes the Engine Fault Indicator to Flash?

[JanelleDella]

Reasons for the engine fault indicator flashing: 1. Excessive carbon buildup in the throttle or engine interior; 2. Malfunction of the oxygen sensor leading to an imbalance in the air-fuel mixture ratio; 3. Leakage in the fuel injector, causing it to continue supplying fuel even after the throttle is closed, resulting in an overly rich mixture at low speeds and unstable idle after throttle release; 4. Substandard gasoline, where the use of low-quality fuel with excessive metal content poisons the oxygen sensor. A flashing engine fault light may indicate a malfunction in a certain component of the engine. The engine fault warning light is triggered by the ECU, which controls all the electronic components of the engine, such as the electronic throttle, fuel injector, alternator, and fuel pump. If any of these systems fail, the engine fault light will illuminate.