Air mass flow sensor fault bad symptoms

MAF) sensor measures the volume of air entering the engine so the Engine Control Unit (ECU) can calculate how much gasoline the fuel injectors should deliver to each cylinder in order to create the proper fuel-air ratio. Sometimes, however, a malfunction in this little instrument can lead to big problems, usually resulting in very poor engine performance.Mass airflow sensor problems can cause a variety of symptoms from the annoying to the must repair. We'll discuss these in-depth on this page. The faulty mass airflow sensor and how to fix the problem written by: nandy A vehicles MAF or mass airflow sensor, is the element that measures the density and flow of the air passing in to the combustion section.It assists the vehicles computer activate the air ratio to fuel.MAF sensor may be hard to start or stall after starting.

It may hesitate under loa surge, idle rough or run excessively rich or lean.

How to tell you got a bad MAF

A bad mass air flow sensor in a vehicle makes starting difficult and affects the performance of the engine because he engine-control unit uses data from the MAF sensor to balance the fuel ratio the injectors deliver to the engine. A bad sensor returns a significantly different temperature than that of the engine coolant when read using a scan tool set to temperature.MAF in case both are faulty. Iâ€m just wondering what else it could be. MAF, is a tool found in modern engines used to monitor the incoming air.

This information is essential for the engine control unit (ECU) to deliver a balanced amount of fuel mass to the engine.