FAERSI Mass Air Flow (MAF) Sensor – Replacement for Ford, Mazda, Mercury, and More
Product overview
Direct replacement MAF sensor engineered to measure the volume and density of intake air and provide accurate airflow readings to the engine control unit (ECU). Designed to meet OEM specifications and deliver fast, reliable performance across a wide range of ambient temperatures.
Key features
- Direct replacement for factory mass air flow sensors
- Precise airflow measurement for improved engine control
- Fast response time: ~15 ms
- Durable construction: plastic and aluminum components
- Helps resolve airflow-related diagnostic trouble codes (may help clear P0100-P0104 and similar MAF-related codes, depending on the underlying cause)
- Easy to install
Compatible vehicles (examples)
Replaces MAFs for many models – confirm fitment before purchase. Examples include:
- Ford: Ranger (2001-2003), Explorer (2000-2002), Explorer Sport (2003), Taurus (2000-2003), Escape (2001-2004), Focus (2000-2004), E-150, E-150 Club Wagon, E-250
- Mercury: Sable (2000-2003), Mountaineer (2003)
- Mazda: B3000 (2001-2004), Tribute (2001-2004), B4000
- Lincoln and other Ford-platform vehicles may also apply
Note: This list is illustrative. Always verify compatibility using your vehicle year/make/model or by checking the OEM part number.
OEM / Replacement part numbers
Replaces the following OE numbers (not exhaustive):
- 74-50011
- XF2Z-12B579-AB
- XF2F-12B579-AB
- 1L2Z-12B579-BA / 1L2Z12B579BA
- 1F22-13210-R0A
- M3207
Installation & troubleshooting tips
- Before installing, clean the air box and replace the air filter. A dirty air box or clogged filter can cause persistent fault codes or a check engine light even after replacing the MAF sensor.
- After install, clear any stored codes and test drive to confirm the issue is resolved. If codes remain, further diagnosis may be required.
Warranty
- One-year limited warranty
carlos –
A 100
Maria Hernandez –
No problems so far it seems like a good product.
Handyman –
Time will tell, but so far so good. And if you consider the product warranty along with the price savings from a box store, this is a pretty good deal.
David –
I didn’t realize how easy and quick this would be, and didn’t understand how important it was to how well the car ran. I installed a cold air intake kit 15 years ago and just used the original MAF sensor, but over all those years, I’m sure it had been failing or underperforming. And recently I started getting notifications from ODBII testing that indicated the MAF was not quite at its best. When I ordered this one, it fit right in place just like OEM, and took less than 5 minutes to swap out (including finding my security torx bit to unscrew it.) I went for a drive and immediately could tell the difference in throttle response and perceived horsepower. I wish I had known to swap this out years ago! Especially as inexpensive as it was.
I imagine anyone reading this review already has tested and discovered the need to replace it, so don’t wait and just go for it! The reason I chose this particular one on Amazon was due to the higher ratings overall. There are so many that Amazon says fit my 2002 Mustang, and some cheaper, but this one in particular seemed to have the best overall reviews and was worth paying a few dollars more than the cheaper ones.
Jeff –
Works as it should
robert york –
This is a good company they make good products. Unfortunately, this mass flow sensor was not matched to my vehicle. The barometric pressure and the air intake charge was both off by quite a bit and reading Graham’s per second op. The mass air sensor was too high for some reason it didn’t match my vehicle might’ve been my fault. I’m not sure but I don’t think so. Anyway, the company refunded my money with no problem.
Guy Harvey –
Bad part. Not a good product. I took it out and put an OEM sensor in. Problem solved. Engine ran fine.
David Magruder –
Part was correct, arrived on time, and was in new condition.
Tom –
Haven’t got any problems with it months later
M spiria –
Can’t buy original any more this is the cheapest place I found it Works great easy to install
Howard N. Feldman –
No problem with installing the new sensor. It immediately made a difference in how the car started ran. So far so good.