Mass air flow sensor symptoms diesel

A check engine light often comes on due to a dirty airflow sensor (MAS). Learn the symptoms of an MAS that needs cleaning, and how to clean it.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. Air Mass Meter, MAF, Air Mass Sensor, Mass Air Flow, Air Flow Meter, AFM etc It is the device used in many fuel injected engines to measure the amount of air entering the engine so the computer can control the air/fuel mixture.

Located ahead of the throttle body, the MAF sensor uses a heated wire or filament to measure airflow. All modern VW, Audi, and TDI use a MAF to help measure air flow. A MAF sensor is one way of directly measuring how much air is passing the MAF sensor and into the engine.

How to Detect and Clean a Faulty Mass Airflow Sensor - CarsDirect

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.There are a number of things on a car that are built to regulate the amount of air and fuel that get mixed. The mass airflow sensor is one of the most important of these sensors due to the job that it performs. This is a guide to finding, cleaning or changing the MAF sensor on your Opel \/ Vauxhall Vivaro, Renault Trafic or Nissan Primastar van. This sensor is often the cause of low power, an inability to rev properly and rough running.In most modern diesel engines, it is not sufficient to simply control the amount of EGR flowing to the combustion chamber.

It is also critical that the air-to-fuel (A/F) ratio—or more specifically the oxygen-to-fuel ratio to account for the oxygen in the recirculated exhaust gas—at all engine operating conditions is controlled to prevent excess particulate and smoke emissions.