February 13, 2008I have an 89 toyota pickup with a 22RE. I recently bought a resistor off ebay to hook into my IAT sensor to see if they really help power by tricking your ECU into thinking its getting cold air. That changes your air/fuel curve, and ignition timing, supposedly increasing horsepower. It claims 9-13 horsepower, and I want to test this for myself. Anyways, im not for sure where my IAT sensor is, i've only had a quick look at it today but im not sure where its located. Does anyone know where it is and what the wires are to it? Thanks
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February 13, 2008Never heard of it. But what does "IAT" stand for--I have a hunch, it may mean intake air temp, but thats a guess. And the only place that could be is in the air filter housing(AFM), behind that little flap thats in there there is a little white probe sticking down. Maybe thats it. If its an interconnect, it might go between that wide flat plug that plugs into your AFM.Let us know what happens..........
February 18, 2008OK ive located the IAT sensor.. its in the MAS right before the flap. Is a little white probe sticking out from the top. Anyways, i installed the little $30 resistor as its supposed to be, and i noticed very little difference. It claims 9-13hp, but id say it only helps about 3-4 at the most. In my opinion, its not worth #30. If your really desperate for 3hp, go to your local radioshack or electronics store and buy a 1k resistor for about $1. Then install it on the 2 wires going to your IAT sensor. These wires are the 3rd wire, and the last wire on the end of the plug-in on the MAS. One is brown, and the other is yellow w/ blue stripe. These $30 or higher so called "power chips" on ebay, claiming anywhere from 10hp-20hp increase is nonething but a gimmick.