Nissan 240SX 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 Nissan 240SX Mass Airflow Sensor Replacement is $270 with $175 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$570.01Shop/Dealer Price$693.77 - $1042.53
1989 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$445.39Shop/Dealer Price$543.01 - $813.32
1992 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$553.89Shop/Dealer Price$678.63 - $1030.32
1997 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$550.01Shop/Dealer Price$673.76 - $1022.52
1990 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$445.39Shop/Dealer Price$543.02 - $813.35
1994 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$550.01Shop/Dealer Price$673.78 - $1022.56
1993 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$558.89Shop/Dealer Price$683.50 - $1035.08
1998 Nissan 240SXL4-2.4LService typeMass Airflow Sensor ReplacementEstimate$555.01Shop/Dealer Price$679.02 - $1027.98
Show example Nissan 240SX 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 Nissan mechanics

Real customer reviews from Nissan owners like you.

Excellent Rating

(43)

Rating Summary
35
5
2
1
0
35
5
2
1
0

H

26 years of experience
828 reviews
H
26 years of experience
Nissan 240SX L4-2.4L - Smell in the car - Palo Alto, California
Nice, Friendly and Knowledgeable

Tien

23 years of experience
903 reviews
Tien
23 years of experience
Nissan 240SX L4-2.4L - Car is not starting Inspection - Union City, California
Fixed problem easily and answered all questions with no problem

Deane

11 years of experience
340 reviews
Deane
11 years of experience
Nissan 240SX L4-2.4L - Car starts and then dies - San Diego, California
The initial appointment with Deane was fine, however, the follow-up was less than satisfactory. After his inspection Deane informed me I would be contacted by the office with a quote. After waiting more than 5 hours, I called and left a message requesting a call back. I was called back, given a quote and when requesting an appointment was told I'd be called again after checking Deane's schedule. Two hours later I was informed via message that Peter was assigned the repair appointment for 4/23.. One hour before the appointment, Peter called to reschedule due to a problem with needed parts. An hour later the office called stating there is no problem and Peter could arrive around noon. I'd had enough by then that I canceled the appointment. Deane as an individual was professional, but I would not recommend him because of the lack of professionalism demonstrated by his employer.

Dan

39 years of experience
976 reviews
Dan
39 years of experience
Nissan 240SX L4-2.4L - Smoke from engine or exhaust - Jefferson, Georgia
Dan was thorough and precise in his diagnosis. It was spot on. He was cordial, courteous, and professional. Thanks for hiring the best.

Excellent Rating

(43)

Rating Summary
35
5
2
1
0
35
5
2
1
0
Number of Nissan 240SX services completed
473+
services done by our mechanics
TOTAL NUMBER OF EXPERT Nissan MECHANICS
1500+
experts on our platform

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