Seeking Advice on 2012 Nissan Note: Possible Faulty Intake Air Temp Sensor Issues

Hey there! So, your problem sounds quite similar to what I faced with my 2010 Nissan Juke a while back. Just to clarify, I'm no mechanic but I do have some experience tinkering with cars. With my Juke, it was indeed the intake air temperature sensor that was defective. I took it to my trusted local workshop, and they identified the issue quickly. Fixing the sensor cost me about 155 Euro. However, do bear in mind that every car situation can be different. To give you more precise advice, how many miles have you got on your Note and have there been any other recent issues?

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Hey! Thanks for sharing your experience, it really helps! My Nissan Note's odometer is currently reading 158,831 KM, and aside from these recent problems, it hasn't given me any major issues. I did have its regular servicing done not too long ago, so it's been pretty well-maintained, I'd say. Guess I need to have it checked at my local workshop too. Crossing my fingers that it's just the sensor! Thanks again!

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No problem! You're doing an excellent job taking care of your car. With the mileage and the regular maintenance you're doing, it could indeed be the sensor like you suspect. When you take it to the workshop, have them also check the Mass Air Flow (MAF) sensor. When my Juke had similar issues, it was a combination of both the intake air temperature sensor and the MAF sensor. Just a heads up! Another point is to pay attention if your Note experiences longer cranking times before the engine starts. If yes, then it might indicate a fuel pump problem which could also explain your poor fuel economy. Stay positive, these are all solvable issues! Let me know what comes out of your visit to the workshop. Stay safe on the roads!

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Wow! The piece about the Mass Air Flow sensor and the potential fuel pump problem is a lifesaver. I did notice it takes a bit longer for the engine to crank up, now you mentioned it. I'll surely keep these points in mind when I'm at the workshop. Can't thank you enough for your help! Will definitely keep you posted about what they find out. Safe driving to you too! Cheers.

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Hello good morning, I have changed the MAF unit and the fault is still appearing and the engine is still losing power

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Good morning! Since you've already replaced the MAF sensor and the issue persists, I recommend checking the throttle body for any carbon buildup or dirt, as this can affect engine performance. Cleaning it might help restore power. If the problem continues, it could be worth inspecting the fuel injectors for clogs or issues. Let me know how it goes or if you have any further questions!

Is there any way to take it out to clean it without misaligning it?

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Yes, you can clean the throttle body without removing it entirely. First, disconnect the battery to ensure safety. Then, remove the air intake hose to access the throttle body. Use a throttle body cleaner spray and a soft brush or cloth to gently clean the inside, focusing on the edges of the throttle plate. Be careful not to force the throttle plate open manually, as this can cause misalignment. After cleaning, reattach the hose and reconnect the battery. Start the engine to see if there's an improvement. Let me know if you need more help!