How To Replace a Nissan Sentra Mass Airflow Sensor

Doing anything to your Nissan Sentra, which involves tinkering around with its inner workings without the help of a professional mechanic is never a good idea. However, there are certain situations where it is easy enough to do without professional aid, such as when you are replacing a mass airflow sensor (MAF sensor). This is very fortunate indeed, because a fault MAF sensor can mean a lot of trouble. For one, it could have trouble starting up (which can also be attributed to battery failure, but the MAF sensor is the first culprit). What’s worse, it could also stall your car while you are driving, which is definitely not a good thing. So the moment you are beginning to doubt the effectiveness of your MAF sensor is the moment you should have it replaced.

Normally, having a mechanic replace the MAF sensor is recommended because it eliminates any complication from trying it out on your own. However, it could also be quite a waste of money, especially if you are more than capable of doing it yourself. And even if you aren’t experienced in doing something like this, so long as you know how to do it, then you will not have too many problems. This article will aid you in replacing your Nissan Sentra’s MAF sensor through the use of a step-by-step guide. So if you have no choice but to do it yourself (or do not wish to waste any extra money), then continue reading to the steps below:

  • Make sure you have all the necessary tools and the MAF sensor replacement before continuing. This includes a socket wrench and a set of Phillips socket screwdrivers. Once you have these tools (along with the MAF sensor replacement), then you can go about replacing the old, faulty sensor.
  • Locate the old MAF sensor. Open up the hood of your Nissan Sentra—you are looking for something called the air box. This is a plastic box which should be near the side of the passenger on the engine bay. It is easy to find, so once you have located the air box, you can remove the cover of the air box as well as the air filter (very carefully). Once you have done so, look at your replacement MAF sensor, and use it as a guide to find the faulty one inside the air box. It will still be slightly covered by the intake tubing, but you can still see it clearly.
  • Remove the tubing and unplug the sensor. Use your screwdriver to loosen the intake tubing, and then remove it from the air box. Afterwards, unplug the faulty MAF sensor and remove it as well.
  • Plug the replacement MAF sensor and reassemble the air box. Once you have taken care of the faulty sensor, insert your new MAF sensor and plug it in. Finally, return the tubing back to its original place (tightening the clamps with your screwdriver), insert the air filter and cover it to reassemble the air box.

Congratulations, you have properly replaced the mass airflow sensor of your Nissan Sentra and are ready to test it out! Just remember to drive safely at all times.


Share this article!

Follow us!

Find more helpful articles: