Home Auto Repair How to Clean a MAF With Alcohol

How to Clean a MAF With Alcohol


A vehicle’s mass air flow (MAF) sensor is designed to measure the amount of air flowing into the engine’s intake manifold. This information is then sent to the vehicle’s engine management computer, which injects the proper amount of gasoline into the cylinders. Through daily driving, these sensitive MAF sensors get layered with dirt and oil. It’s important to keep your MAF sensor clean so it operates properly. While there are alcohol-based cleaners available, you can save some money by cleaning the MAF sensor with isopropyl alcohol at home.

Step 1

Locate the mass air flow sensor on your vehicle, which will be under the hood. Most cars’ MAFs can be found behind the air filter on the air intake.