what to clean mass air flow sensor with

Most modern EFI engines have a Mass Air Menstruum (MAF) sensor located in the air intake of the engine. This is the device that measures how much air is coming into the engine so that the computer tin can determine how much fuel it needs to inject. While the MAF sensor does non straight measure the bodily period rate of air, it measures the density. Air density changes with temperature, altitude and forced consecration (supercharger/turbo applications), making density more of import than air volume catamenia charge per unit.

Inside the sensor box is the hot wire, which is inside the postal service sticking out into the center of the housing.

What Is A Mass Air Flow Sensor?

There are two principal types MAF sensors- hot wire and cold wire. A hot wire MAF sensor uses a platinum wire located in the path of air flow, which is heated using specific voltage. As the air passes over the hot wire, it is cooled, decreasing the wire's resistance to voltage. The engine command module (ECM) measures this change and alters the tune appropriately. The other type is a common cold wire sensor. These are ordinarily constitute in GM engines. These sensors utilize both a hot wire and a cold wire, where the cold wire functions equally a reference for the hot wire.

This is the virtually mutual type of MAF sensor- a Hot Wire, installed on a 2004 Mustang.

Because these sensors are directly exposed to the air, they pick up contaminants that alter their readings, which lead to rough running atmospheric condition. You can't use carburetor or brake cleaners on a MAF sensor, as the chemicals in those cleaners tin destroy the fragile sensors. Instead, a special MAF sensor cleaner is required.

CRC MAF Sensor Cleaner is specifically designed to remove oil, clay, fibers and dust from the sensor without damage. The chemicals used are hexane-based, which evaporate quickly without the use of alcohol. A clean MAF sensor is a happy MAF sensor. The process is quite simple and can be completed in about 10 minutes.

How To Clean A Mass Air Period Sensor

First, NEVER use MAF sensor cleaner with the engine running or even with the central in the run position. This can cause major damage to the sensor. With the primal off, unplug the sensor.

With the engine off and absurd, unplug the sensor.

Next, remove the air intake tubing and and then remove the MAF sensor.

Near sensors are connected with hose clamps. Loosen the clamp and remove the sensor box.

Place the MAF sensor on a towel to take hold of the runoff.  Insert the plastic harbinger into the nozzle on the can and spray the interior of the housing with 10-15 blasts. Yous need to cover the hot wire(due south) and plate. Be very careful to not affect the wires with any object, including the straw. The wires are quite delicate.

Spray 10-15 bursts of CRC MAF Sensor Cleaner on all parts of the sensor.

Spray all sides of the sensor and housing, including the connectors.

Don't forget to spray the terminals.

Reinstall the sensor into the car and allow a few minutes for the chemicals to evaporate earlier starting the engine.

Let the sensor to dry out and reinstall. The cleaner evaporates in seconds.

It is a proficient idea to make clean the MAF sensor every time you change or clean the air filter. A clean MAF sensor can restore four-x horsepower to the wheels, which is a significant number for  just cleaning a sensor.

Warning: Practise Not utilise any MAF sensor cleaners on Karman-Vortex mode air flow sensors, which are typically found in Toyota Supra turbos, Mitsubishi (including the DSM rebadged Eagle Talon and Plymouth Laser), and most Lexus engines. These special Karman-Vortex sensors use highly sensitive components that cannot be cleaned and any attempt to do so may cause serious harm to the MAF sensor. There is no reliable method for a DIYer to make clean a Karman-Vortex style air menses sensor. When in doubtfulness, just leave information technology alone.

If you accept whatever concerns virtually performing this chore yourself be sure to contact your local NAPA Car Parts Store or NAPA AutoCare Eye.

Bank check out all the chemic & lubricant productsbachelor on NAPA Online or trust i of our 17,000 NAPA AutoCare locations for routine maintenance and repairs. For more information on how to make clean your MAF sensor, chat with a knowledgeable expert at your local NAPA AUTO PARTS shop.

Jefferson Bryant View All

A life-long gearhead, Jefferson Bryant spends more time in the shop than anywhere else. His career began in the automobile audio industry as a shop director, eventually working his manner into a position at Rockford Fosgate as a production designer. In 2003, he began writing tech manufactures for magazines, and has been working as an automotive journalist e'er since. His work has been featured in Car Craft, Hot Rod, Rod & Custom, Truckin', Mopar Muscle, and many more. Jefferson has also written 4 books and produced countless videos. Jefferson operates Red Dirt Rodz, his personal garage studio, where all of his magazine articles and tech videos are produced.

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