How to Service and Repair the Mass Air Flow Sensor on Ford Focus?

The servicing process of Air Flow Meter/Sensor begins with disconnecting the battery ground cable. The vehicle should be placed in neutral mode before hoisting it. The first step of service and repair begins with disconnecting the MAF sensor electrical connector before removing its two retaining screws. The MAF sensor removal process ends after the sensor is taken out and the installation concludes with the opposite order of removal steps.

OEM Ford Focus Mass Air Flow Sensor

MAF Sensor Meter

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5 Mass Air Flow Sensors found

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Ford Focus Mass Air Flow Sensor Part Number: 3L3Z-12B579-BA
$138.13 MSRP: $227.27
You Save: $89.14 (40%)
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Product Specifications
- Other Name: Sensor Assembly; Air Charge Temperature Sensor; Intake Air Temperature Sensor; MAF Sensor; Sensor
- Manufacturer Note: 4.6L, Police
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Ford Focus | S, SE, SEL, SES | 4 Cyl 2.0 L GAS
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Ford Focus Mass Air Flow Sensor Part Number: 3W4Z-12B579-AC
$154.70 MSRP: $254.55
You Save: $99.85 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly; MAF Sensor; Air Mass Sensor
- Replaces: 3W4Z-12B579-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2007 Ford Focus | LX, S, SE, SES, ST, ZTS, ZTW, ZX3, ZX4, ZX4 ST, ZX5, ZXW | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Ford Focus Mass Air Flow Sensor Part Number: 1L5Z-12B579-ARRM
$272.22 MSRP: $376.59
You Save: $104.37 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Remanufactured Sensor Assembly; MAF Sensor; Air Mass Sensor
- Replaces: 1L5F-12B579-AB, AFLS-129, 1L5Z-12B579-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2004 Ford Focus | SE, SVT, ZTS, ZTW, ZX3, ZX5 | 4 Cyl 2.0 L GAS
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Ford Focus Mass Air Flow Sensor Part Number: CP9Z-12B579-B
$141.44 MSRP: $232.73
You Save: $91.29 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor Assembly; MAF Sensor; Air Mass Sensor
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2012-2018 Ford Focus | S, SE, SEL, Titanium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS
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Ford Focus Mass Air Flow Sensor Part Number: YS4Z-12B579-FRM
Product Specifications
- Other Name: Sensor Assembly; MAF Sensor; Air Mass Sensor
- Replaces: YS4Z-12B579-FARM, YS4Z-12B579-FA, YS4Z-12B579-GB, YS4Z-12B579-GA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2007 Ford Focus | LX, S, SE, SES, Sony Limited Edition, ZTS, ZTW, ZX3, ZX4, ZX5, ZXW | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

Ford Focus Mass Air Flow Sensor

OEM Mass Air Flow Sensor boasts unmatched quality. Each part goes through full quality checks. They adhere to Ford's official factory standards. These steps remove flaws and inconsistencies. So you can get Mass Air Flow Sensor with long life and a perfect fit. Come to our website and find genuine Ford Focus parts. We keep a wide inventory of OEM Focus parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Due to its special function in the Ford Focus vehicles, the mass air flow sensor of Ford Focus, known as Ford Focus MAF is very important in increasing the performance and durability of the vehicle. It detects the quantity of air getting to the engine hence enabling the PCM to inject fuel for the optimal air to fuel mixture proportions. Modulating sophisticated equipments like Hot Wire and Vane Meter (VAF), Ford Focus Mass Air Flow Sensor effectively measures the airflow which is a vital factor in ensuring the right combination of the engine's capacity and safety. The component's compatibility ranges across the different generational models of the Ford Focus hence contributes to the performance of the car. Mass Air Flow Sensor is one of those few automobile spare parts that have elicited interest in the market because of its good mechanical strength and efficiency, which are vital for longevity of the vehicle. This component that is installed on the Ford Focus requires the Mass Air Flow Sensor servicing so as to avoid the problems associated with restricted airflow and contaminants within the sensor. Also, the Mass Air Flow Sensor is used to increase fuel efficiency, hence minimizing emission and providing the optimal experience when driving. This Mass Air Flow Sensor is among the most demanding products in its class due to its performance and reliability, which only proves that Ford Focus lineup strives to deliver only the optimal vehicles to the market with the help of innovative technologies in car engineering. Whether it is about travelling on city roads or on a highway, the Mass Air Flow Sensor helps in giving a safe and efficient car ride worth.

Ford Focus Mass Air Flow Sensor Parts and Q&A

Mass Air Flow Sensor
YS4Z-12B579-FRM
Q: How to Service and Repair the Mass Air Flow Sensor on Ford Focus?
A:
The servicing process of Air Flow Meter/Sensor begins with disconnecting the battery ground cable. The vehicle should be placed in neutral mode before hoisting it. The first step of service and repair begins with disconnecting the MAF sensor electrical connector before removing its two retaining screws. The MAF sensor removal process ends after the sensor is taken out and the installation concludes with the opposite order of removal steps.