How To Replace a Infiniti G35 MAF Sensor

How To Replace a Infiniti G35 MAF Sensor

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The mass air flow sensor in your 3.5 liter Infiniti G35 is a big part of your fuel injection system. Mounted onto your air induction box, the Infiniti G35 MAF sensor reads the incoming air charge and analyzes it. The Infiniti Engine Computer Unit or ECU uses this information to efficiently operate the 3.5 liter engine.

Over time your mass air flow sensor can become clogged or dirty, or even fail completely. When this happens you’re going to have a serious issue with your engine idle, and a lack of power. Your Infiniti Check Engine light will also be triggered ON, and you’ll need a OBDII scan tool to properly retrieve this code.

Today I’ll be showing you how to remove and replace your Infiniti G35 MAF in a 2006 2WD with a 3.5 liter VQ35 engine. If you need a replacement mass air flow sensor make sure to check our online store for the best price online.

Infiniti G35 MAF Sensor

Tools to replace your Infiniti G35 MAF

In order to replace your Infiniti G35 MAF, you’ll need a few tools to get the job done. Here’s a quick rundown of what you will need.

  • 10mm socket
  • flathead screwdriver
  • 10mm open ended wrench

How to Replace your Infiniti G35 MAF

The mass air flow sensor in your 3.5 liter VQ35 is an easy part to replace. To begin you will need to remove the 10mm bolts and the two front nuts that hold your engine cover in place. Once you’ve removed the engine cover, you can access the 3.5 liter air intake tract.
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Now you can undo the four plastic pins that hold the air ducting that runs to your airbox. The front tray can be lifted out easily, and once you have that plastic ducting removed, you can remove the air power duct plastic pins.

How To Install an Infiniti G35 MAF Sensor

Undo the front metal clamps that hold the front air box cover in place. Now remove the power air duct that’s connected to the front of your 3.5 liter air box.

How To Install an Infiniti G35 MAF Sensor 1

Now undo the top metal clamps to the airbox, and you can then remove the 10mm bolts that hold the air piping in place.

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Now that these 10mm bolts are removed, you can turn your attention to the metal clamps that hold the air intake in place. Undo these worm clamps leading to the 3.5 liter throttle body.

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Disconnect the vacuum hose shown above once you have the worm clamps removed. Now you must disconnect your mass air flow sensor, at which point you are ready to lift and remove the air piping.

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Once you’ve disconnected the Infiniti G35 mass air flow sensor, you can lift up on the intake piping and remove the entire pipe. Be careful as the plastic silencer section is connected to the bottom of the intake piping. This section is rather long and can interfere with you removing the intake piping.

Now you can undo the 10mm bolts that hold the MAF in place. Once you have the old mass air flow sensor removed, you can remount your new replacement air flow sensor. Use an OBDII scan tool to remove any check engine codes stored in your engine computer. Have any questions about our guide on replacing your Infiniti G35 MAF? Leave us a comment below and let us know.

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