How Much Does Mass Air Flow Sensor Replacement Cost?
Expect to pay $100 to $380 at an independent shop for a typical car, and up to $415 at a dealership. The mass air flow (MAF) sensor tells the engine computer how much air is coming in. When it fails, the engine runs rough and the check engine light comes on. The part is in the air intake and usually takes minutes to replace.
- Parts$80–$300
- Labor$20–$80
- Shop time0.2–0.5 hours
- DIY difficultyEasy (1/5)
Estimate your cost
Mass Air Flow Sensor Replacement cost by vehicle type
| Vehicle | Parts | Labor | Total |
|---|---|---|---|
| Compact / economy car | $80–$300 | $20–$80 | $100–$380 |
| Midsize sedan / crossover | $90–$345 | $25–$90 | $115–$435 |
| Truck / full-size SUV | $105–$390 | $25–$90 | $130–$480 |
| Luxury / European | $145–$540 | $30–$105 | $175–$645 |
Independent shop vs. dealer vs. chain
| Where | Hourly rate | Typical total |
|---|---|---|
| Independent shop | $110–$160 | $115–$435 |
| Chain (Midas, Firestone…) | $120–$175 | $120–$440 |
| Dealership | $160–$230 | $125–$470 |
What does it do?
The MAF sensor measures the volume and density of air entering the engine so the computer can inject the right amount of fuel.
Signs you need this repair
- Check engine light with codes P0100–P0104, or lean codes P0171 and P0174
- Rough idle or stalling
- Hesitation or jerking when accelerating
- Poor fuel economy
- Black smoke from the exhaust (running rich)
Can you do it yourself?
Difficulty: Easy (1/5). Usually two screws and one connector in the intake tube between the air filter and the throttle body.
Doing it yourself saves the labor portion, roughly $20–$80, so you would pay only for parts ($80–$300).
Is it worth fixing?
Yes, but try a proper MAF cleaning first. A working sensor restores drivability and fuel economy.
How to save money
- Try cleaning the sensor with dedicated MAF cleaner spray first: a dirty sensor is more common than a dead one.
- Check for air leaks in the intake tube after the sensor, which cause the same codes.
- Replace a clogged or oiled air filter, which contaminates the sensor.
Questions to ask your mechanic
- Did you try cleaning the sensor?
- Did you check for intake air leaks after the sensor?
- Is the replacement an OEM-brand sensor?
Frequently asked questions
Can I clean a MAF sensor?
Yes, with spray made specifically for MAF sensors. Never touch the sensing wires.
Can I drive with a bad MAF sensor?
Usually, but the engine may run poorly and use more fuel, and a rich mixture can damage the catalytic converter over time.
How long does a MAF sensor last?
Often the life of the car, though oiled aftermarket air filters can shorten it.
Related repair costs
Helpful guides
Sources and methodology
Estimates combine typical book labor times, current aftermarket and OEM parts prices, and 2026 US shop labor rates. See exactly how we calculate them.
- U.S. Bureau of Labor Statistics: Occupational Employment and Wage Statistics, automotive service technicians (49-3023), by state
- U.S. Bureau of Labor Statistics: Automotive Service Technicians and Mechanics (pay and duties)
- Federal Trade Commission: Auto Repair Basics (estimates, warranties, your rights)
- NHTSA: Check for recalls before paying for a repair (our free recall check uses NHTSA data)
- ASE (National Institute for Automotive Service Excellence): technician certification