Penapis udara yang kotor sememangnya boleh menyebabkan lampu enjin semak menyala. Penapis udara memainkan peranan penting dalam fungsi enjin kenderaan. Fungsi utamanya adalah untuk mengelakkan kotoran, serpihan, dan bahan cemar lain daripada memasuki enjin dan menyebabkan kerosakan. Walau bagaimanapun, lebih masa, penapis udara boleh tersumbat dengan kotoran dan serpihan, mengurangkan keberkesanannya.

Apabila penapis udara kotor dan tersumbat, ia menyekat aliran udara ke enjin, membawa kepada campuran udara-bahan api yang kaya. Ketidakseimbangan ini boleh mencetuskan lampu semak enjin menyala. Unit kawalan enjin (ECU) monitors various sensors and parameters to ensure the engine is running optimally. If it detects a problem with the air-fuel mixture due to a dirty air filter, it will illuminate the check engine light to alert the driver.

In addition to triggering the check engine light, a dirty air filter can also negatively impact the performance and fuel efficiency of the vehicle. Restricted airflow can lead to reduced power output, pecutan lembap, dan peningkatan penggunaan bahan api. Oleh itu, it is important to regularly inspect and replace the air filter as recommended by the vehicle manufacturer.

Fortunately, replacing an air filter is a relatively simple and inexpensive maintenance task. Most air filters can be easily accessed and replaced without the need for specialized tools. It is generally recommended to replace the air filter every 12,000 ke 15,000 batu atau seperti yang dinyatakan dalam manual pemilik kenderaan.

Regular maintenance and timely replacement of the air filter can help prevent the check engine light from coming on due to a dirty air filter. It is also important to note that a dirty air filter is just one of the many potential causes for a check engine light. If the check engine light remains illuminated even after replacing the air filter, it is advisable to have the vehicle diagnosed by a qualified mechanic to determine the underlying cause.