Hesitates at light throttle and doesn't run particularly smoothly under boost either. Having unplugged the MAF sensor she's running really nicely Can't find an obvious air leak. GavinPearson 5, posts months. Nick - you can buy some cleaning products that remove the contaminants that cause inaccuracy and that might be worth trying.
Sardonicus 18, posts months. Some cars might last a year, some 20 years. There is just no simple answer. They don't always throw fault codes when faulty either to the OP'er you need to know how to interpret the voltage output on the scanner of choice get it checked at a reputable diagnostic workshop you could save a lot of money I also agree with trying to clean the sensor 1st like mentioned with carb cleaner.
Perhaps you are already aware of this, but the OBD code indicates a symptom, not a fault. Additionally at startup there will usually be some self testing function. It may well be that at 0 rpm the MAF gives the expected voltage, but at a higher load point the voltage at the PCM may be lower than expected. You might assume that it is the MAF, but it could be the feed, return or reference wire at fault.
Or the connector. The MAF features a sensing element, which tells how much air is flowing through. This element is made either of platinum wire and called a hot wire design or nickel foil grid with the tile of a hot film design. Both are delicate and may be damaged if you try to clean them. The MAF sensor measures the amount of air that comes into the system. It provides this information to the engine computer, allowing the system to adjust the amount of fuel needed to maintain the correct ratio.
It may even stall on you while driving, which is no fun. When the air filter is clogged, it allows more dirt and debris to slip by and accumulate on the sensor.
Routine maintenance and air filter replacement can extend the life of your MAF sensor and ensure it continues to work correctly. While the exact timing varies based on where and how much you drive, a good rule to follow is every 10, to 12, miles. This article originally appeared on YourMechanic. Autoblog is partnering with YourMechanic to bring many of the repair and maintenance services you need right to you.
Get service at your home or office 7 days a week with fair and transparent pricing. We get it. Ads can be annoying. But ads are also how we keep the garage doors open and the lights on here at Autoblog - and keep our stories free for you and for everyone. Contamination is a key reason why MAF sensors fail and require replacement.
As air, dirt and other debris get into the sensor , the parts become contaminated and fail. This causes starting, idling and acceleration problems, as well as poor gas mileage. Routine maintenance and air filter replacement can extend the life of your MAF sensor and ensure it continues to work correctly. While the exact timing varies based on where and how much you drive, a good rule to follow is every 10, to 12, miles.
Can I run my car with MAF unplugged? You can drive your car a bit and see if it runs correctly with the sensor disconnected. If cleaning the mass airflow sensor does not fix the issues that it was having, then it is time to replace it. Sometimes mass airflow sensors get shorted or stop working and need to be replaced. Queralt Rathore Professional.
How do you bypass a MAF sensor? Turn off the ignition of your vehicle and open its hood. Disconnect the negative battery cable red. Locate the mass air flow MAF sensor on the air intake. Grasp the wire harness that connects the MAF sensor to the power unit in the engine compartment and gently pull it out of the MAF sensor. Ondrej Shirkovets Explainer. How often should a MAF be replaced? Adina Velikovsky Explainer. How much is it to replace a MAF sensor? The prices vary based on where you go for servicing and what kind of car you have.
X Dieppa Explainer. How do I clean my MAF sensor without cleaning it? Locate the mass air flow sensor on your vehicle, which will be under the hood. Remove the MAF sensor from the vehicle.
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