nissan pathfinder mass air flow sensor problems

If you have power here, you will then check PIN B on the ENGINE side of the wiring harness. With the key turned to the “ON” position, you should have 12 volts of DC power at this wire. Gently touch the multimeter probe to PIN A on the ENGINE side of the MAF connector. The pin you will be checking is PIN A as shown in our Pathfinder MAF Sensor diagram below. To begin we will be using our digital multimeter to check and make sure that the mass air flow sensor is getting power. How to Test your Pathfinder MAF Sensor for power We will be starting our Pathfinder MAF Sensor tutorial with the power and ground signals. If you have any of these problems in your Nissan Pathfinder, it’s time to check your MAF sensor. Rich engine condition – bad gas mileage.

But most will be more serious and can lead to premature engine damage or catalytic converter failure. Some of these symptoms are minor and can range from slightly troublesome to annoying. When your mass air flow sensor in your 3.5 liter Nissan goes out, you’re going to have several symptoms.

Nissan pathfinder mass air flow sensor problems