Bad mass air flow sensor symptoms dirty

CRC makes a specialized cleaner that removes any contaminants without damaging the plastic. Well, this MAF sensor easily becomes contaminated with dirt and stuff from the air filter not performing its job or the box that holds the air filter is broken or not sealing correctly. Vehicle manufacturers eventually built in a self-cleaning mechanism into the part. Just remove the sensor and spray the filament until it is clean, then re-install the sensor. Regardless of what color body the MAF sensor has or the amount of wires in the connector. A tremendous lack of power upon acceleration. Contaminated Mass Airflow Sensor If there is no vacuum leaks and the air induction hose is in good shape, it's possible that a dirty mass airflow sensor is the problem. On the image viewer on the right, you'll see photos of several different Ford MAF sensors.

Part 1 -How to Test the Ford Mass Air Flow (MAF) Sensor

They are all tested in the same way! The PCM thinks the air fuel ratio is too lean and is adding fuel to compensate. It's when the air duct that runs from the air filter housing assembly to the throttle body is torn. The sensor pictured on the right, converts air flowing past a heat sensing element into an electrical signal. Some mechanics will recommend to clean the sensor every time you replace the air filter. The vane sensor is also known as an air flow meter. The increase in current to maintain the sensors heat is converted to a voltage signal and sent to the PCM to adjust the air fuel ratio.

A dirty MAF signals the PCM of less air flow than actually occurs, resulting in excessive positive Long Term Fuel Trim numbers. The vane sensor is also known as an air flow meter.

What are the symptons of a malfunctioning mass airflow

Bookmark this page and share with friends having car troubles. One of these would be a vacuum leak where air gets pulled into the intake manifold. It is crucial, yes very critical that you first check that there are no air leaks between these two. Karmen Vortex air flow meter does the same thing as the rest, but creates a vortex that is sensed by a photo coupler and a mirror. You can find this tutorial in Spanish here: Cmo Probar el Sensor de Flujo de Aire (Sensor MAF) de Ford (at: m/es/ ).

Ford has used a Hot-Wire type mass air flow sensor for many years that either comes with or without an internal air temperature sensor. For more information about things that can make your service lights go on, this next link will take you back to the section about check engine light problems. Here's another situation where the mass airflow sensor gets bypassed. If it is producing a signal, but the signal's response is too slow to changes in throttle position, then I know to look into cleaning it. Also watch the video on how to clean MAF sensors without damaging the delicate part at the bottom. The transmission control unit uses this information for shift control.