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tranny temp monitoring on EDM Evo IXs

Old Mar 25, 2009, 05:37 PM
  #16  
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Attached are a couple of pics of the sensor... They are pics i took a while back, with a my phone's camera, so sorry about the quality.

The sensor is actually the oil drain plug, as you can see in the pictures, so it is immersed in oil.

Removing the sensor will trigger a p0710 cel, which can be solved by putting any resistor between 75 and 135k ohm.

Removing the sensor will not trigger the "M/T Temp" light to turn on.
Attached Thumbnails tranny temp monitoring on EDM Evo IXs-12122008200.jpg   tranny temp monitoring on EDM Evo IXs-12122008201.jpg  
Old Mar 25, 2009, 07:41 PM
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Originally Posted by kkarim
Attached are a couple of pics of the sensor... They are pics i took a while back, with a my phone's camera, so sorry about the quality.

The sensor is actually the oil drain plug, as you can see in the pictures, so it is immersed in oil.

Removing the sensor will trigger a p0710 cel, which can be solved by putting any resistor between 75 and 135k ohm.

Removing the sensor will not trigger the "M/T Temp" light to turn on.
Thanks for the pics. Now I can see its in direct contact with the gear oil.
Old Mar 25, 2009, 08:03 PM
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Great find mrfred! Thank you so much to you and everyone else that is working on this!!!
Old Mar 25, 2009, 08:27 PM
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Originally Posted by GST Motorsports
it is pretty useful. I added a trans temp gauge after blowing up my OEM 6spd and putting in a TRE rebuilt 6spd.

One interesting piece of data I got from having the temp gauge is that the trans runs 8-10c warmer on the hwy without the undertray on a 75* day.
Wow removing the tray actually allows the trans to run hotter, huh wouldn't have thought that.
Old Mar 25, 2009, 08:45 PM
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mrfred, please check routine, its very interesting what happened when oil is very hot\or no sensor. For now, I know that without sensor car wont boost (0% wgdc)
Old Mar 25, 2009, 09:24 PM
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Mattjin,

In the 88840016 ROM, the subroutine starts at 0x13A44.

Darwinn,

I'll take a look at the subroutine more over the next few days. I too am curious to see how the status is passed to the WGDC control subroutine.
Old Mar 25, 2009, 11:29 PM
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Originally Posted by evo8dad
Wow removing the tray actually allows the trans to run hotter, huh wouldn't have thought that.
Interesting indeed. Could it be to do with airflow? I.e the stock undertray helps guide the air flowing under the car such a way that it goes past the tranny and wicks away heat, while without the air isn't as guided as well?

I guess some of those people who have been tossing that tray are going to start putting it back on now .
Old Mar 26, 2009, 04:27 AM
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Originally Posted by Darwinn
mrfred, please check routine, its very interesting what happened when oil is very hot\or no sensor. For now, I know that without sensor car wont boost (0% wgdc)
using an mbc, so i never really noticed that :P
Old Mar 26, 2009, 06:10 AM
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Originally Posted by codgi
I guess some of those people who have been tossing that tray are going to start putting it back on now .
I never liked the idea of removing the undertray and mentioned it a few times in years past, but since certain 'big shops' on this board do it, everyone does it and you can never win a 'discussion'.
Old Mar 26, 2009, 11:53 AM
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Originally Posted by evo8dad
Wow removing the tray actually allows the trans to run hotter, huh wouldn't have thought that.
If you look at the tray, it isn't just a "tray" but has air channels, etc designed into it.
Old Mar 27, 2009, 01:37 AM
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It is what I expected, no sensor or over-temp and it will cut the boost to save the tranny. Thanks MrFred, I will start having a poke around and see what I can find too.
Old Mar 27, 2009, 06:49 AM
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great find! our cars shoulda came with this... -.-
Old Mar 27, 2009, 07:43 AM
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JDMs come with this also.
Old Mar 27, 2009, 12:06 PM
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it would be nice to have this working and maybe limit the WDGC or the rpm if it exceeds the set temps. that may save the tranny most of all for the 6-speeds.
Old Apr 6, 2009, 05:44 PM
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is it possible to look at the code for 96260009 and find the ram location, please

would love to be able to log the temp. any idea on scaling?

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