mass air flow sensor problems chevy impala

Whatever the reason for P0101 in your Chevy Impala, ignoring it is a bad idea.When this mass air flow vane meter goes bad, you can have a variety of issues pop up in your Impala.

Clogged Catalytic Converter– If you are getting P0101 in your Impala accompanied by a noticeable lack in power at speed, it may very well be that you have a clogged catalytic converter.

At this point if you use the YouTube video above in the MAF sensor dirty section, and there turns out to be no voltage at all, try checking out How to Find an Electrical Short on Most Any Vehicle from BackYardMechanic If you don’t see any you can use a multimeter to test the wiring. Start by inspecting the wiring harness for obvious damage.

MAF Sensor Wiring– Make sure to check around the MAF sensor for opens or shorts.

Without knowing how much air is really getting into the engine, P0101 will be thrown.

Intake Manifold/Vacuum Leak– If there is a leak in the intake manifold, it will be impossible for the MAF sensor to get an accurate reading.

Just make sure you check to make sure it fits your year Impala before purchasing. If you do need one, they are pretty reasonable on Amazon. The second is that it only takes a few minutes to test it with a multimeter. Here’s a video on how to test one without pulling it.

MAF Sensor Failure– While it is very likely that the MAF sensor itself could be the problem, it’s absolutely necessary to test it before you replace it.

Here’s a great article on exactly how to clean one from Family Handyman. They can be cleaned, but it’s easy to mess one up, and you don’t want to use a wire brush.

MAF Sensor Dirty– Over the course of its life, the MAF sensor will often get so covered in grime that it’ll no longer get an accurate reading.

They are presented loosely in order from most to least likely: Here are the most common causes of P0101 in the Chevy Impala. Since P0101 has to do with the Mass Airflow Sensor, which is a huge part of a computer controlled engine’s combustion process metering. The engine’s computer uses this reading to determine the exact amount of fuel that the engine needs for optimal combustion.

It measures the air density and volume in between the air filter and the intake manifold. It’s important to understand what the MAF sensor does.

It should be considered a high priority to fix, as the MAF sensor not reading properly can really make an impact on the performance of the vehicle. We will cover exactly what that means and potential fixes for it below. With the Chevy Impala, P0101 means the the Mass Air Flow (MAF) sensor has a Range/Performance problem.

Mass air flow sensor problems chevy impala