11 Signs Your MAF Sensor Is Bad | Fix It Today A faulty MAF (Mass Air Flow) sensor can lead to serious engine performance issues — and most drivers don’t even realize it’s the cause. From rough idling to poor fuel economy, these 11 warning signs will help you catch a bad MAF sensor before it leads to costly repairs. Learn how to spot the symptoms early and how to fix or replace the sensor quickly and affordably. Don’t ignore the signs — protect your engine and wallet today. #MAFSensor #CarMaintenance #CheckEngineLight #DIYAutoRepair #EngineProblems