What Causes the Citroen Engine Warning Light to Illuminate?

[RowanAnn]

The reasons for the Citroen engine warning light to illuminate are: 1. Poor fuel quality that does not meet standards. This situation does not affect the vehicle's driving but can cause damage to the engine; 2. Carbon buildup in the engine or spark plugs. After some use, the engine will accumulate carbon deposits, which can lead to difficulties in starting the engine, poor acceleration, and excessive noise; 3. Damaged water temperature sensor. When the engine water temperature is low, the water temperature sensor sends information to the ECU to enrich the air-fuel mixture, stabilizing the engine operation. If the water temperature sensor fails to indicate a cold engine condition, the air-fuel mixture will become lean, causing abnormal engine operation.