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PostPosted: Tue Dec 21, 2010 8:51 am 
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Joined: Mon Feb 09, 2009 7:25 pm
Posts: 17
Location: Arkansas
Hi all,

I have the turbo installed (non OEM), and I am finishing up some last minute touches before I fire it up. I was thinking about building an electronic circuit that once boost went over 4 PSI, it would activate the CTS Mod, which I would then control with my 5K potentiometer.
I have a digital EGT and Boost gages, both of which have settable alarm functions. I could set the boost alarm at 4 PSI to turn on a relay that then sent the CTS signal to my potentiometer.

Here's my question; Does anyone know the electrical details on the CTS, or possibly
maybe how the ECU interacts with the CTS? I'm guessing the ECU sends a super tiny
voltage to the CTS, and then reads the resistance determined by temperature? Do you know
where I can dig up this information?

Thanks a bunch,
Dudley


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PostPosted: Tue Dec 21, 2010 4:28 pm 
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Joined: Sun Feb 23, 2003 4:16 am
Posts: 8033
Location: Ontario, Canada
No need for an electronic circuit. Use a pressure switch.

viewtopic.php?f=2&t=26951&start=0

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