Air Temp Sensor Relocation
#1
Weird Cat Man
Thread Starter
Air Temp Sensor Relocation
Hello all, I just wanted to report on my experiences in moving my intake air temperature sensor.
I moved my sensor from the stock location (on the bottom side of the intake manifold) to my Greddy elbow. I was originally planning on putting it in my intercooler piping near the battery, but the metal of my intercooler pipes wasn't thick enough to tap threads into.
So anyhow, the basics of this are:
1 - Remove Intake Air Temp Sensor (IATS) from the intake manifold and plug the hole up with a sawed down bolt with some sealant
2 - Extend the wires/plug for the IATS to reach your new location. I recommend soldering the wires together for a solid connection.
3 - Mount the IATS in your new spot. I drilled a hold in my Greddy elbow and tapped it with the correct thread. I also filed the area of the hole flat so that the IATS would seal well against it. Do NOT put a lot of torque on it if you put it in the Greddy elbow! That thing is very soft and I'm sure you could easily strip out the threads you just made.
Results:
While I had the IATS out, I tested it by hooking up a multimeter to it and then blowing hot air on it... it actually responds pretty fast! The main problem with this thing is heat soak, not that the sensor is too slow. I know most people knew this already but I like to test things for myself
The IATS definitely responds faster to temperature changes now. It's not like, "OH MY GOD LOOK AT THAT!" but it is noticeable. It used to be that after sitting idling for a few minutes the thing would be up at around 60-65 C and then even after driving at 60 mph, it would just sit there for quite a while before coming back down slowly. And you know it never seemed to -quite- get back down to where it was before you pulled over and let the car idle for a few minutes.
Now it warms up some, but not as much while idling... then when I start moving, it quickly picks up a few degrees because the intercooler is hot. After another minute or two, you can see the intercooler getting cooled back down by moving through the air and it drops back to 50 C or so. (All this testing was done on a 90+ F day).
All in all, I'm quite satisfied that this is a mod that works. You won't be astounded and amazed, but it does have a positive impact.
Brian
I moved my sensor from the stock location (on the bottom side of the intake manifold) to my Greddy elbow. I was originally planning on putting it in my intercooler piping near the battery, but the metal of my intercooler pipes wasn't thick enough to tap threads into.
So anyhow, the basics of this are:
1 - Remove Intake Air Temp Sensor (IATS) from the intake manifold and plug the hole up with a sawed down bolt with some sealant
2 - Extend the wires/plug for the IATS to reach your new location. I recommend soldering the wires together for a solid connection.
3 - Mount the IATS in your new spot. I drilled a hold in my Greddy elbow and tapped it with the correct thread. I also filed the area of the hole flat so that the IATS would seal well against it. Do NOT put a lot of torque on it if you put it in the Greddy elbow! That thing is very soft and I'm sure you could easily strip out the threads you just made.
Results:
While I had the IATS out, I tested it by hooking up a multimeter to it and then blowing hot air on it... it actually responds pretty fast! The main problem with this thing is heat soak, not that the sensor is too slow. I know most people knew this already but I like to test things for myself
The IATS definitely responds faster to temperature changes now. It's not like, "OH MY GOD LOOK AT THAT!" but it is noticeable. It used to be that after sitting idling for a few minutes the thing would be up at around 60-65 C and then even after driving at 60 mph, it would just sit there for quite a while before coming back down slowly. And you know it never seemed to -quite- get back down to where it was before you pulled over and let the car idle for a few minutes.
Now it warms up some, but not as much while idling... then when I start moving, it quickly picks up a few degrees because the intercooler is hot. After another minute or two, you can see the intercooler getting cooled back down by moving through the air and it drops back to 50 C or so. (All this testing was done on a 90+ F day).
All in all, I'm quite satisfied that this is a mod that works. You won't be astounded and amazed, but it does have a positive impact.
Brian
#6
The Power of 1.3
Join Date: Aug 2001
Location: Shrewsbury, Massachusetts
Posts: 2,837
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by c00lduke
What about water injection, you would need to make sure the AitTemp was closer to the engine then the water injector in the air path right?
What about water injection, you would need to make sure the AitTemp was closer to the engine then the water injector in the air path right?
#7
Rotary Freak
My mechanic has the Greddy elbow with the extra injector bungs . One was cut off and a blow off valve is there, the other bung has a nylon plug with the air temp senser threaded in the plug . The heat soak through the nylon is very slow . A little time on the lathe and another good mod .
Trending Topics
#15
Rotary Enthusiast
Join Date: Mar 2001
Location: Edwards, CA
Posts: 1,023
Likes: 0
Received 0 Likes
on
0 Posts
Cihuuy, absolutely. There is plenty of "meat" on the stock elbow to tap the threads. Its actually probably a little better to use the stock elbow since it isn't metal and thus less likely to heat soak.
#16
Senior Member
Join Date: Mar 2002
Location: in the garage
Posts: 595
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Cihuuy
hmmm... great write up bro...
will it work relocating the sensor to the stock oem elbow??
hmmm... great write up bro...
will it work relocating the sensor to the stock oem elbow??
I'm just now getting ready to put it in the intercooler piping.
Matt
#21
I have more fun than you.
Join Date: May 2002
Location: Sand Key/Clearwater Beach, Florida
Posts: 1,078
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 93blackrx
good luck man, I'll have some pics tomorrow if you want them. whats your e-mail?
matt
good luck man, I'll have some pics tomorrow if you want them. whats your e-mail?
matt
#22
Senior Member
Join Date: Mar 2002
Location: in the garage
Posts: 595
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by DavidDeco
OT: You don't post enough.... Please post more often and send me your avatar please in a more detailed form. God she is hot. ;*)
OT: You don't post enough.... Please post more often and send me your avatar please in a more detailed form. God she is hot. ;*)
......there is that enough?
#23
Originally posted by 93blackrx
good luck man, I'll have some pics tomorrow if you want them. whats your e-mail?
matt
good luck man, I'll have some pics tomorrow if you want them. whats your e-mail?
matt
tanx...
#24
Rotary Freak
Join Date: Oct 2002
Location: Salem, IN
Posts: 1,625
Likes: 0
Received 0 Likes
on
0 Posts
i think i'm gonna saw the nipple off of my stock elbow since i no longer have anything going to it, fill the hole with some strong epoxy, drill it and tap it for the sensor, run longer wires, and see if that helps any. i'll prolly do it this weekend, so i'll let everyone know how it works