26 Tighten the fasteners that connect the air duct to the MAF sensor. Use HEX No.H5. Use a torque wrench. Tighten it to 5 Nm torque. 27 Treat the mass air flow sensor connector. Use dielectric grease. 28 Attach the mass air flow sensor connector. 29 Clean the air filter cover and housing. CLUB.AUTODOC.CO.UK 9–14 Step 2: Taking Part Air Intake System To Find MAF Sensor. The air intake system consists of tubes made of plastic or metal. By removing this part, you will see a MAF sensor located between the engine and the filter. For instance, the Ford cars often have this part sitting behind the filter. Location: Chico, Ca. Fuel filter or dying FPDM would be my guess. 2004 - 2008 Ford F150 - Mass Airflow Sensor Issue symptoms - I searched the forum and really did not find too much that dealt with the issue I've been having. Truck has been running great, (230,000 miles) and after a nice long drive from NC to FL the throttle response has fallen off. Bali. 25847 posts · Joined 2012. #4 · Jan 13, 2017 (Edited) I always reset DME adaptations using BMW Scanner 1.4 or INPA and clear trouble codes after replacing parts that affect the fuel or air control, such as MAF, O2 sensors, ICV, throttle body, etc. This is just a matter of course and often may not be needed. 25378 posts · Joined 2008. #10 · Nov 21, 2011. According to my Bentley manual (page 130-9): A faulty MAF sensor can produce the following problems: - Difficult to restart when engine is hot. - Engine starts then stalls. - Engine starts and runs only with accelerator pedal depressed, etc. The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. A bad mass airflow sensor can leave your Chevy Silverado's engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Silverado's ECU. Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues – Your Celica may run rich or lean when idling, or it may also idle erratically. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. The exhaust color is usually darker when running rich. A lean condition is when there is Since the MAF sensor is responsible for measuring air flow into the engine, they have a lot of air passing through them. In fact, more than 9000 liters of air can flow through the engine for every liter of fuel used. That’s a lot of air! And with that comes the potential for a lot of contamination. Dust, dirt and other debris can all get into mhzM80.