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Topic #41932 17 posts Started by Rjb23
Does anyone know what this sensor is?

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This post has been edited by Rjb23: Oct 8, 2006 - 2:32 PM
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QUOTE(Rjb23 @ Oct 8, 2006 - 11:13 AM) [snapback]489032[/snapback]
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Does anyone know what this sensor is?

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the temp sensor for the ECU or temp gauge

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
It's not for my coolent gauge because that still works and this sensor is not hooked up. Is it the coolent temp sensor for the ecu? I thought the one on the front was the ecu coolent sensor, my coolent gauge is pluged into one in the back next to the one that I boxed in red.

This post has been edited by Rjb23: Oct 8, 2006 - 2:34 PM
thats for a 3sgte, his 5sfe is a little different in that area.

2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
according to his profile he has a 3sgte swapped celica, and this is the forced induction forum...
oh, im sorry. i didnt look at his profile! well that 3sgte looks different than what he has in the picture posted. different gens maybe?

2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
I have a 90-91 JDM 2nd gen 3sgte, I can't remember what year exaclty. I've looked at that picture before trying to figure out what it is, I have the green coolant temp sensor in the front and the grey coolent temp sensor(gauge) in the back too. I also have the sensor in the pic I posted with a broken connection to the sensor that I don't know what it is.

This post has been edited by Rjb23: Oct 9, 2006 - 11:52 AM
i think what you did is plug your coolant temp gauge into your cold start time injector switch or your coolant temp ecu sensor..

im pretty sure those 3 sensors are pretty much all just temperature probes anyway, this is why your coolant temp gauge still works.

this is just a theory though, im not 100%.
you know, ive never been shure what that one is for. i know its not the coolant temp for the gauge, the ecu, or the cold start switch. i kind of remember reading somewhere in the diagrams that the AC system might need a temp probe, so that might be it....but thats just a WILD guess.

This post has been edited by lagos: Oct 10, 2006 - 1:29 PM

15PSI - 30MPG - Megasquirt Tuned
im pretty sure i only have 3 harness plugs on my neck, and that noegruts pic only shows 3 too.. maybe theres a difference somewhere?

looking at the noegruts pic and your pic it does look like 2 different coolant necks..

This post has been edited by brianforster: Oct 10, 2006 - 1:44 PM
Those 3 plugs are all different plugs and can not plug into the wrong sensors. Maybe I'll try and find a part number on it.
it might be for the cooling fans.
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QUOTE(toyotatech @ Oct 11, 2006 - 10:14 AM) [snapback]490253[/snapback]
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it might be for the cooling fans.


no, that one is on the radiator.

15PSI - 30MPG - Megasquirt Tuned
Which I don't have because I have an st my fans are wired to run all the time.
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QUOTE(lagos @ Oct 11, 2006 - 2:03 PM) [snapback]490343[/snapback]
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QUOTE(toyotatech @ Oct 11, 2006 - 10:14 AM) [snapback]490253[/snapback]
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it might be for the cooling fans.


no, that one is on the radiator.


i did'nt read it all, i thought we were looking for a 7a-fe.