IAT sensor relocate kit ??? Help !!
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Burning Brakes
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IAT sensor relocate kit ??? Help !!
I bought a intake air temp sensor relocate kit (IAT-78B) made by GMP Parts Co in Calif.
The instructions say to mount the sensor on a rigid surface & the sensor itself is mounted in a "U" shaped aluminium bracket. I always thought they had to mount in the side of the air box using a rubber grommet. You would think mounting it outside the airbox would be kinda useless & there is no grommet on the harness to indicate it should be inside the airbox.
The kit is the correct one for a 85 to 91 vette & my car is an 85. Has anyone else used this kit & what way did you mount it ??
The instructions say to mount the sensor on a rigid surface & the sensor itself is mounted in a "U" shaped aluminium bracket. I always thought they had to mount in the side of the air box using a rubber grommet. You would think mounting it outside the airbox would be kinda useless & there is no grommet on the harness to indicate it should be inside the airbox.
The kit is the correct one for a 85 to 91 vette & my car is an 85. Has anyone else used this kit & what way did you mount it ??
8th Gear
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Race Director
Joined: Apr 2002
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From: Anaheim CA
I think this is a very interesting topic. I don't know if the relocation affects other years, but on my car (1986) the ONLY thing the MAT (or IAT if you want) sensor is used for is to enable EGR, which it does if the temperature is over 0.5°F. Here's the parameter:
LC23A: FCB 30 ; Disable EGR if MAT < (-17.5°C = 0.5°F)
LC23A: FCB 30 ; Disable EGR if MAT < (-17.5°C = 0.5°F)
Last edited by Cliff Harris; Oct 29, 2014 at 02:45 AM.
Drifting
Joined: Feb 2013
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Exactly. On the 92 cars, the ecm adds or removes fuel based on IAT temps. The iat sensor actually has nothing to do with the timing tables on the 92 and Im sure other years close. When I procharged my car I moved the IAT sensor because the blower heats the air and also the air is alot more dense. I didnt want the ECM to add or take out fuel due to the sensor.
Last edited by smooth1990; Oct 29, 2014 at 01:41 PM.
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Drifting
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8th Gear
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Installation
But still, anyone knows where would be perfect location for this one to install? It doesn't come with grommet but with aluminum holder.
http://www.parts123.com/parts123/yb....5Z50000050F~~~
http://www.parts123.com/parts123/yb....5Z50000050F~~~
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
But still, anyone knows where would be perfect location for this one to install? It doesn't come with grommet but with aluminum holder.
http://www.parts123.com/parts123/yb....5Z50000050F~~~
http://www.parts123.com/parts123/yb....5Z50000050F~~~
