Can a Dirty Air Filter Cause A Check Engine Light?
A dirty air filter can indeed cause a check engine light to illuminate. The air filter plays a crucial role in the functioning of a vehicle’s engine. Its primary function is to prevent dirt, debris, and other contaminants from entering the engine and causing damage. However, over time, the air filter can become clogged with dirt and debris, reducing its effectiveness. When the air filter is dirty and clogged, it restricts the airflow to the engine, leading to a rich air-fuel mixture. This imbalance can trigger the check engine light to come on. The engine control unit (ECU) monitors…