This pin is the MAF signal wire, and it runs to your ECU. You’ll need to backpin the wire that leads to PIN 4. Now you’ll need to reconnect the Nissan mass airflow sensor. The next part of this DIY tutorial is to test the continuity between your Nissan Engine Control Unit and the 350Z MAF Sensor. If you have power and ground here, you’ve established that the ECU is sending the right signal. To do this simply flip around the multimeter leads, put the red lead to power and probe WIRE 3 with the black lead to see if you have a ground present. However you’ve got to check the low reference ground signal as well.

This means that your ECU is sending power to your MAF and powering it up. If you have power at this wire, it’s good news. Using your multimeter this wire should return a switched power signal with your ignition turned to the “ON” position. The wire you’ll be checking first is the second from the left when you are facing the front of your MAF connector. Once you’ve got the Nissan 350Z MAF Sensor unplugged, you’ll be testing the ENGINE harness side first for a switched power signal. You don’t need to disconnect the MAF housing, just depress the plastic tab and unplug it. Now locate your MAF by following your airbox to the MAF housing.ĭon’t forget if you own a 2007+ Nissan 350Z you will have two MAF sensors. You must begin by opening your hood and turning the key to the “ON” position. We’ll begin this How To Guide by testing your 350Z MAF for the power supply. To begin this guide, you’ll need a digital multimeter to measure the voltage at the wires and MAF itself. Other than this obvious Nissan 350Z issue, there’s quite a few other problems depending on your MAF failure. Using this tool you’ll have a alphanumeric code that will tell you what the problem is in the engine. To retrieve you code you’ll need to use a OBDII scan tool to pull the code. There’s quite a few check engine OBDII codes that can crop up when your mass air flow meter goes south. Nissan 350Z problems with the MAF has failed Nissan’s move to a dual 350Z MAF sensor setup in 2007+ corresponds to the changes and upgrades to their 3.5 liter V6 engine. Regardless of how many 350Z MAF sensor are in your Nissan, the testing procedure is the same for this tutorial. If you happen to own a 2007+ your Nissan will come with two of the same sensor. This vehicle is equipped with the 3.5 liter VQ35DE engine, and it’s equipped with just one mass airflow meter.

Today I’ll be showing you how to test the 350Z MAF Sensor in a 2006 Nissan.

G35 mass air flow sensor problems