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Old 08-27-2007, 06:29 PM   #21
hurricane123
Scooby Newbie
 
Member#: 121116
Join Date: Jul 2006
Chapter/Region: W. Canada
Location: Calgary
Vehicle:
2004 WRX
v7 w/VF30

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Quote:
Originally Posted by ride5000 View Post
dude, it takes two seconds to google "thermistor."

your understanding of their theory of operation needs work.

what you SHOULD be focusing your energies on is identifying an additional 0-5v analog input to the ecu that is not critical for operation. this has already been done for a different purpose, that of logging wideband uego controller analog translated outputs.
The translator takes the k-type thermocouples output and "translates" it to a 0-5v output. That is what the stock EGT sensor input is. Why would I go looking for a different 0-5v input?

Also using the stock EGT input would allow me to utilize some of the failsafe features in the ECU ... ie: if EGT>1650* then put the car into failsafe mode, thus cutting boost and going to the failsafe fueling map.

Jeff
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