Whatever the reason for P0101 in your Ford F150, ignoring it is a bad idea.
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 Locate the MAF on top of the intake snorkel mount. Finally, lift the MAF sensor from the metal body. Then remove the two Torx head bolts using your Torx pattern driver. If you don’t see any you can use a multimeter to test the wiring. Step 1 - Remove MAF sensor Locate you MAF sensor, which is the black box sitting on top of your metal airbox-to-intake snorkel mount.
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 F150 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 Ford F150.
Since P0101 has to do with the Mass Airflow Sensor, which is a huge part of a computer controlled engine’s combustion process metering. I then took it to Ford Dealer who wanted. The engine’s computer uses this reading to determine the exact amount of fuel that the engine needs for optimal combustion. Truck started running really rough at about 134,000 miles, changed throttle body, cam sensor, O2 sensor, fuel filter. 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 Ford F150, P0101 means the the Mass Air Flow (MAF) sensor has a Range/Performance problem.