What is this sensor?

Chris

Chris

Administrator
Staff Member
Ride of the Month Winner
Joined
Sep 28, 2015
Messages
71,210
Location
Gillette, WY
Anyone know what this sensor is? It's on the air intake tube on my 05 Rubicon. My Banks air intake doesn't have a provision for it so I'm curious to know if it's even needed or not?

image.jpeg
 
Okay I found out this is the IAT sensor. From 97-04 these were installed on the intake manifold, but in 05-06 they moved them to the intake tube because apparently that was a more accurate place to get an air temperature from.
 
  • Like
Reactions: wkelley70
Jerry Bransford said:
Yes the IAT sensor is definitely needed, go back to the OE tube. :)
Click to expand...

Jerry, my TJ came with the banks air intake and my IAT plug has been unplugged ever since I bought it without me even knowing.

Oddly enough it runs just fine without it plugged in and has no CELs at all. However, I ditched the intake for the supercharger and went back to the stock intake tube so now my IAT sensor is plugged back in.
 
Just came across this, so am reviving an old thread. Interesting to hear that "from 97-04 these were installed on the intake manifold, but in 05-06 they moved them to the intake tube because apparently that was a more accurate place to get an air temperature from."

Is there any benefit to relocating mine?
 
SSTJ said:
Just came across this, so am reviving an old thread. Interesting to hear that "from 97-04 these were installed on the intake manifold, but in 05-06 they moved them to the intake tube because apparently that was a more accurate place to get an air temperature from."

Is there any benefit to relocating mine?
Click to expand...

Not unless you know how to tune the pcm for the temp reading differences. This relates to your timing thread. The pcm uses intake temp readings to adjust timing and other things. You don't want to change positions and screw up your timing
 
  • Like
Reactions: SSTJ
It would be interesting to know the difference between ambient temp in the airbox or intake tube and at the hot manifold location. Air is going pretty fast through the intake so it's not going to be the so hot don't touch temp of the manifold. What would the expected result be from the PCM using a lower air temp reading to set parameters? Apparently Chris ran for some time with his IAT sensor just hanging in the engine bay somewhere with no bad result.
 
  • Like
Reactions: SSTJ
Rickyd said:
Not unless you know how to tune the pcm for the temp reading differences. This relates to your timing thread. The pcm uses intake temp readings to adjust timing and other things. You don't want to change positions and screw up your timing
Click to expand...

Makes good sense, thanks. I'm now realizing that the link above, and the other result I got via Google, were both for YJs anyway.
 
Last edited:
Top Bottom
Back