The Signs of Mass Airflow Failure: What to Look For and How to Fix It

Your car’s engine is a finely tuned machine, and it needs clean air to run properly. That’s why your car has a mass airflow sensor – to make sure the air entering the engine is clean. If this sensor fails, your car will not run correctly. In this blog post, we’ll talk about what the mass airflow sensor is, how it works and how to spot failure. We’ll also discuss how to fix it if it goes wrong.

What is a mass airflow sensor?

The mass airflow sensor is a small, cylindrical device that’s located near the air filter. It measures the amount of air entering the engine and sends this information to the car’s computer. The computer uses this information to determine how much fuel to inject into the engine. If there is too much or too little air, the engine will not run correctly.

How can you identify mass airflow failure?

There are several signs that can indicate a problem with the mass airflow sensor.

Difficulty starting the engine

If your car has difficulty starting, it may be due to a problem with the mass airflow sensor.

Poor fuel economy

A bad mass airflow sensor can cause the engine to run too rich or too lean, which will reduce your gas mileage.

Rough running engine

If the engine is running rough, it may be because of a problem with the mass airflow sensor.

Check engine light

The Check Engine light is one of the most common signs of an air flow problem. It will come on if there is something wrong with the air intake system, including the mass airflow sensor.

How do you fix a bad mass airflow sensor?

If you think your mass airflow sensor has failed, the first thing you should do is take it to a mechanic for diagnosis. If it is indeed faulty, the mechanic will likely replace it. The replacement process usually isn’t too difficult, but it can be expensive. Depending on your car’s make and model, the cost of replacing the mass airflow sensor can range from $100 to $300.


The mass airflow sensor is an important part of your car’s engine, and if it fails, the car will not run correctly. If you are experiencing any of the symptoms listed above, have your car checked out by a qualified technician. He or she will be able to diagnose the problem and fix it quickly and easily.

We hope this blog post has been helpful. If you have any questions, please don’t hesitate to ask us in the comments section below. Thanks for reading!