You’ll already save plenty by not going to a mechanic, so use a MAF sensor cleaner and get the job done right.Cleaning your mass air flow (MAF) sensor is an essential part of your car maintenance. Even though isopropyl alcohol, acetone, or electronics cleaner may work, there are plenty of cases where the car runs fine for a day or two only to shut down completely and require a new MAF sensor. VehicleFreak is on a mission to provide cheap and simple DIY repairs for your vehicle as long as they’re safe and reliable. The sensor indirectly affects the air-fuel mixture and helps the computer adjust the mixture for optimal performance. Yes, cleaning the MAF sensor will have a significant impact on performance, especially if it has become very dirty. Aftermarket sensors start at $50, while a can of cleaner solution can be bought for just $5 – $10 Does cleaning a MAF sensor improve performance? Given how easy and relatively inexpensive the cleaning is, you should always try it before replacing the sensor. Petrol is corrosive and it’s possible that it will damage the sensitive material the sensor is made of.
Can you clean a MAF sensor with an electrical cleaner?Įlectrical cleaners may contain oil to protect electrical contacts, which is not good for the MAF sensor. Also, this method can only clean the sensor to an extent, while the spray has the capability to penetrate from all directions. The claim is that acetone does not leave residue, but the same cannot be said for the cotton bud which may leave fibres. There are a lot of DIY videos and written guides on the subject, but I wouldn’t recommend using anything other than a MAF sensor cleaner. If the cleanup didn’t help, you can use these steps to replace the sensor – but again, don’t touch the sensitive components.įAQs What else can I use to clean a mass air flow sensor? There’s an arrow on the top of the sensor indicating the direction it needs to face, but before placing the sensor back, let it dry for 10-20 minutes. Instead, spray from the opposite side and you’ll clean both components. If you’ve taken it along with the housing, do not spray through the filter as that will push the dirt towards the sensor. Give the MAF cleaner a good shake and spray the sensor. Wear gloves and do not touch the sensor at any point. If possible, take it off with the housing, otherwise, unscrew the sensor and pull it out. The first thing you need to do is disconnect the wiring harness. Prices pulled from the Amazon Product Advertising API on: Any price and availability information displayed on at the time of purchase will apply to the purchase of this product. Product prices and availability are accurate as of the date/time indicated and are subject to change. The primary benefits of the MAF sensor are the faster throttle response and better fuel economy as the computer can quickly adjust the air-fuel mixture based on the data provided. By checking the electrical current, the vehicle’s computer can tell how much air is flowing into the engine and adjust fuel injection accordingly. In turn, more current will be sent to the hot wire to maintain the constant temperature. Once you accelerate or increase the speed of the vehicle, more air will flow through, cooling the wire down. It contains a hot wire that is heated through an electric current that wants to keep a constant temperature.
The sensor uses an ingenious design to determine how much air is flowing towards the engine. The section of the hose is called a MAF sensor housing that has an additional particle filter. Trace the air hose from the filter and you’ll find the plug sticking out with a wiring harness attached to it. The mass air flow sensor is located between the air filter and the throttle body. There’s no point in buying an alternative spray when the MAF sensor cleaner isn’t particularly expensive. The only alternative that could potentially work is an electronics cleaner, but I wouldn’t take that risk.
#Mass flow sensor cleaner skin
Even touching the sensor is enough to pass the grease from the skin to the sensor and affect its accuracy. Brake cleaners and degreasers are aggressive chemical solutions and may damage the sensor. The second problem is the sensitivity of the sensor wire. The computer will think there’s less air flowing, and adjust the fuel injection accordingly, resulting in a lean mixture. In theory, the residue provides an insulation layer to the wire, making it harder to cool. While WD-40 and brake cleaner will get the dirt off the MAF sensor, the problem is that they leave a layer of residue on the hot wire, effectively making it worse.
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