Question about 2004 Infiniti QX4
Posted by Anonymous on
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Posted on Jan 02, 2017
I can tell you that the mass air flow sensor is up front on the drivers side of the engine. It will be located on top of the round black tube that runs behind the air cleaner box. The IAT, or the IAC valve should be located closer to the engine towards the end of that same tube. That's where the throttle body is located. I would suggest going to your local library and referencing a Mitchell or Chilton repair manual if there is one available for that new of a model.
Posted on May 05, 2009
There will be one on each side of the lower part of the engine on the catalysts, and then there will be two more on the exhaust tubes roughly halfway between the engine and the muffler. You should be able to look at the top of the engine and see four connectors with colored braided wires. They should be white, red, blue and black. You can trace those wires directly to the O2 sensors.
Posted on May 27, 2009
Well first of, what are you looking for the AIT?
But anyways, the AIT should be in the MAF Sensor. Hence all the wires.
OK so i havent taken apart a MAF sensor and neither should you, its a pricey item.
But I do know this; An AIT is an NTC sensor meaning that when tempurature goes resistance goes down and when resistance goes down Voltage goes up. Now one thing you can do is find a wiring diagram of the maf sensor and the vehicles computer. And on there it will show you which wire goes to the AIT.
Any Other question? Just ask me.
Posted on Jul 14, 2009
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