Infiniti I35 Mass Airflow Sensor Replacement at your home or office.

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Mass Airflow Sensor Replacement Service

How much does a Mass Airflow Sensor Replacement cost?

On average, the cost for a Infiniti I35 Mass Airflow Sensor Replacement is $320 with $225 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Infiniti I35V6-3.5LService typeMass Airflow Sensor ReplacementEstimate$738.09Shop/Dealer Price$911.37 - $1391.82
2003 Infiniti I35V6-3.5LService typeMass Airflow Sensor ReplacementEstimate$544.59Shop/Dealer Price$674.52 - $1024.87
2004 Infiniti I35V6-3.5LService typeMass Airflow Sensor ReplacementEstimate$544.59Shop/Dealer Price$674.52 - $1024.87
Show example Infiniti I35 Mass Airflow Sensor Replacement prices

What is the Mass Airflow Sensor all about?

The mass airflow sensor is a round tunnel made of plastic with a sensor attached inside. All cars take air from the outside and pass it into the engine through the air filter. The mass airflow sensor measures the amount of air entering the engine. For an engine to perform properly, it needs a specific amount of air-fuel mixture. The computer in the car reads the amount of air coming into the engine from the mass airflow sensor and then calculates the correct amount of fuel needed for proper engine performance. If the sensor goes bad, the engine will not know the right amount of fuel to add, causing problems including poor gas mileage, lack of power and more.

It is common for the mass airflow sensor to get dirty (if the air filter is dirty) and lose the ability to read the amount of air coming in the engine. If the vacuum hoses are leaking, it will give the same error code as mass airflow sensor failure.

When doing this job, the mechanic may recommend changing the electrical connector that connects the mass airflow sensor to the car's computer system. It is possible for the wires in the connector to break, causing the mass airflow sensor to not work.

Keep in mind:

  • Routinely changing your air filter can improve the lifespan of your mass airflow sensor
  • Often mass airflow sensors stop working because of bad connectors or wiring harnesses.
  • Anytime the mass airflow sensor is replaced, the air duct between the sensor and the intake manifold should be inspected.

How it's done:

  • Scan the computer in the car for codes.
  • Verify the problem.
  • Remove and replace the sensor if found faulty.
  • Check vacuum hoses for leaks and cracks.
  • Test drive the vehicle.

Our recommendation:

  • Changing the air filter on a regular basis will ensure that the car is getting cleaner air and hence performing optimally.
  • If the Check Engine light is on, get the car inspected as soon as you can.
  • If the Check Engine light is flashing, pull over and get the car towed to avoid costly repairs.
  • A mechanic should always inspect the vacuum hoses and snorkel attached to the mass airflow sensor when replacing it. It is possible for these items to have leaks. Replacing the sensor without fixing the leaks will not solve the problem.

What common symptoms indicate you may need to replace the Mass Airflow Sensor?

  • Check Engine light is on.
  • Car does not have power.
  • Excessive fuel consumption.
  • Car may not start.

How important is this service?

In order to run optimally, your vehicle needs to have a perfect fuel-to-air ratio. As the vehicle is moving, an uncontrollable amount of air enters the throttle body and heads into the intake manifold. As such, the fuel has to be adjusted to be optimal for the amount of air. The mass airflow sensor measures the mass of the air that is entering the vehicle, and sends the information to the car’s computer management system. This system then controls the amount of fuel that is injected into the cylinders, so that the ideal fuel-to-air ratio is achieved. When the mass airflow sensor stops working, the computer cannot receive information on the air intake, and the fuel-to-air ratio will be wrong. This will cause your engine to run poorly, and sometimes not at all. It will also impact your gas mileage.

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Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(97)

Rating Summary
88
4
2
1
2
88
4
2
1
2

Maxx

6 years of experience
14 reviews
Maxx
6 years of experience
Infiniti I35 V6-3.5L - Starter - Marietta, Georgia
Great experience. Thank you!

Michael

25 years of experience
187 reviews
Michael
25 years of experience
Infiniti I35 V6-3.5L - Oil/Fluid Leak - Las Vegas, Nevada
Pleasant, respectful, offered us an earlier appt which worked out.

Shawn

12 years of experience
292 reviews
Shawn
12 years of experience
Infiniti I35 V6-3.5L - Electric Problems - Lancaster, Pennsylvania
Great tech, after checking for blown fuses and relay’s , Shawn was able to narrow it down to what possibly is wrong with the vehicle.

Allen

36 years of experience
471 reviews
Allen
36 years of experience
Infiniti I35 V6-3.5L - Pre-purchase Car Inspection - Longwood, Florida
This is my first time using Your Mechanic, but it won't be the last! Allen probably just kept me from making a $5000 mistake! We were looking for an unbiased opinion before we purchased a used car for our son. After a thorough review, Allen found more problems than we could ever have imagined. Over $2000 worth of repairs just to start!! Thank you Allen .

Excellent Rating

(97)

Rating Summary
88
4
2
1
2
88
4
2
1
2
Number of Infiniti I35 services completed
1067+
services done by our mechanics
TOTAL NUMBER OF EXPERT Infiniti MECHANICS
900+
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Recent articles & questions

What Happens to Sensors if They are Dirty?
Car sensors can get dirty with normal use. Symptoms of dirty sensors include reduced engine power, worse gas mileage, or an engine that hesitates.
Symptoms of a Bad or Failing Mass Airflow Sensor
Common signs of problems with a mass airflow sensor include running rich at idle or lean under load, decrease in fuel efficiency, and rough idles.
How to Replace a Speed Timing Sensor
Some signs of a failed speed timing sensor include a Check Engine Light and poor performance. It's also known as the crankshaft position sensor.

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