Ive read were some here and on other forums have moved the IAT sensor from the intake manifold to the tube of there cold air intake. Are there any gains to be had by doing this ?.

Ive owned other vehicles in the past were the IAT sensor was between the throttle body and the air filter housing, and that would seem like the better place for it to be to read the colder air coming into the engine.

 

Doesn't really matter where you put it. The engine will adjust mixture by seeing what the O2 sensor has to say in any event. IAT plays more of a role in open loop operation. (cold engine, or large throttle openings) Having it someplace other than the stock location will have you running a bit richer, that's about the only difference.

 

If your running a bit richer, wouldn`t that give you a little more power even thought it may be a very small gain ?.

 

Those "+100 hp chips" on ebay operate off the same principal. It's nothing but a resistor yuo tap into the IAT wiring to trick the computer into thinking it is cold so it richens up the mixture a bit. The gains are hardly noticeable. I actually made one for my Dakota. I could not tell a difference in any sort of power gains, but my mileage did go down like 1 mpg or so.

 

I moved the IAT sensor from the keg to the inlet tube (K&N) about a month before fitting an FI-Airgap, so I could see the effect of moving the sensor.
The new location is ~6" before the TB, and did not require extending the sensor cable.
The air temperature is ~50°F cooler in this location.
I saw no change in performance or MPG.

 

I know those chips on ebay are junk and don`t do anything. I would never waste my money on them.

 

This is the kind of information I was looking for, wondering if there were any gains to be had if the IAT was moved to a location were it got colder air flow.

 

It would run richer in open loop. If there was any gain to be had there, you wouldn't notice it.

 

+1, I did the exact same thing last month.

 

Guess what I was trying to say unsucessfully was relocating the IAT so it "sees" cooler air is the same concept of those chips.