The best way to Clean Your MAF Sensor

Most modern EFI engines have a very Mass Air Flow (MAF) sensor perfectly located at the air consumption of the engine. Right here is the device that measures what amount air is nearly here into your engine in order that the computer can figure out how much fuel ought to inject. As the MAF sensor doesn’t directly study the actual flow rate of air, its measures are the density. Air density changes with temperature, altitude and forced induction (supercharger/turbo applications), making density more valuable than air volume flow rate.

Inside the sensor box is definitely the hot wire, that’s in the post huge on the core of the housing.

There are a couple of main types MAF sensors- hot wire and cold wire. A warm wire MAF sensor runs on the platinum wire found in the road to wind, and that is heated using specific voltage. As the air passes within the hot wire, its cooled, lowering the wire’s potential to deal with voltage. The engine control module (ECM) measures this variation and alters the tune accordingly. The additional type is a cold wire sensor. They’re commonly present in GM engines. These sensors use both a warm wire in addition to a cold wire, where cold wire functions as the reference to your hot wire.

This is considered the most common type of MAF sensor- a Hot Wire, attached with a 2004 Mustang.

Because these sensors are directly in contact with the environment, they acquire contaminants that alter their readings, which bring on rough running conditions. It’s hard to use carburetor or brake cleaners for a MAF sensor, because chemicals in those cleaners can destroy the fragile sensors. Instead, a unique MAF sensor cleaner is required.

CRC MAF Sensor Cleaner is specifically made to take out oil, dirt, fibers and dust from the sensor without damage. The substances used are hexane-based, which evaporate quickly without using alcohol. A clean MAF sensor may be a happy MAF sensor.?The procedure is very simple and is completed about Ten minutes.

First, NEVER use MAF cleaner together with the engine running or perhaps when using the type the run position. This can cause major trouble for the sensor. With the key off, unplug the sensor.

With the engine off and funky, unplug the sensor.


Next, eliminate the air intake tubing and then get rid of MAF sensor.

Most sensors are associated with hose clamps. Loosen the clamp and take the sensor box.

Place the MAF sensor over a towel capture the runoff. ?Insert the plastic straw within the nozzle over the can and spray the within within the housing with 10-15 blasts. You must cover the newest wire(s) and plate. Be careful to not ever touch the wires with any object, like the straw. The wires will be delicate.

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

Spray every side of the sensor and housing, like connectors.

Don’t forget to spray the terminals.

Reinstall the sensor into your car and allow just minutes with the chemicals to evaporate before you begin the engine.

Allow the sensor to dry and reinstall. The cleaner evaporates within minutes.

It is a good idea to clean out the MAF sensor any time you change or clean the air filter. A clean MAF sensor can restore 4-10 horsepower towards the wheels, which is actually a significant number for ?just cleaning a sensor. Avoid the use of MAF sensor cleaners on Karman-Vortex style ventilation sensors, which have been within Toyota Supra turbos, Mitsubishi, and most Lexus engines. Should you have any concerns about performing this job yourself make sure you speak to your local NAPA Auto Parts Store or NAPA AutoCare Center.

Check out most of the?chemical & lubricant products?available on?NAPA Online?or trust one of our 16,000?NAPA AutoCare locations?for routine maintenance and repairs. To learn more about tips on how to clean your MAF sensor, talk to an expert expert at your?local NAPA AUTO PARTS store.

Leave a Reply

Your email address will not be published. Required fields are marked *