How to Clean or Replace Mass Airflow Sensor Infiniti

*Check out the tools we used below. If the video was helpful, please give it a "thumbs up" and consider subscribing to the channel.* This video goes over how to replace a mass airflow sensor on a 2013 Infiniti G37X Coupe with a 3.7 motor. This should be the same process for any 2009-2013 Infiniti G37X. Most cars have only one mass airflow sensor or map sensor, but because the G37X is a performance vehicle, it has dual air cleaners, dual intakes, dual throttle bodies and of course two mass airflow sensors. A mass airflow sensor (MAF) determines the mass of air entering a vehicle's fuel injection engine and passes that data to the engine control module (ECM). Without an accurate signal from the MAF sensor, the ECM won’t know how much fuel to give the engine. That can either cause the engine to run rich (too much fuel) or lean (too little fuel). The engine's computer uses the MAF sensor to determine how much fuel is to be injected to meet the proper air/fuel ratio. It compensates for weather, altitude or your various driving conditions. Signs of a bad MAF would be a check engine light, poor idle, hard starting, misfiring, a change in fuel consumption, or lack of engine performance. A lot of the time if your car is performing poorly or not starting, you can disconnect the mass airflow sensor. The vehicle will then switch to limp mode and then the car may idle or start better, thus proving your theory that the mass airflow sensor isn’t performing to the proper factory specifications. Tools needed: 1/4 Socket Set -- -- https://amzn.to/3zvlew1 Screw Driver Set -- -- https://amzn.to/3xbX3BF Hand Cleaner -- -- https://amzn.to/3cvaQde Shop Towels -- -- https://amzn.to/3CZm84v Parts: MAF Sensor -- -- https://amzn.to/3nlufTN MAF Sensor Cleaner -- -- https://amzn.to/30I0mnP These are the tools we used or something that’s similar. There are many manufacturers and various prices. It's a good idea to buy the better tool with the best warranty and easiest exchange in case of tool failure. Disclaimer: The Auto Teacher assumes no liability for property damage or injury that happens as a result of any of the information contained in this video. Any information learned from this video is to be used at your own risk. The Auto Teacher recommends safety first! Protective gloves, safety glasses and jack stands are highly recommended. These tutorials are made strictly to help people with their car projects and are given to provide factual information we’ve learned over the past 40 years working on cars. We do not guarantee any particular result or any particular warranty. Any injury, loss or damage contained by the viewer while attempting to follow the video’s instructions is solely the viewer’s fault and not The Auto Teacher.