Elec connector question and IAT
09-16-2011, 03:14 PM
#1
Burning Brakes
Thread Starter
Join Date: Jan 2005
Location: Phoenix, AZ
Posts: 1,032
Likes: 0
Received 0 Likes
on
0 Posts
Elec connector question and IAT
928 Guru's --I am using for my modded SC 996 a 928 what looks like a fuel injector connector and has brown/gray and red/green (2) wires and am using it for the IAT sensor of my inter-cooler on my 996 and was wondering which wire is considered the plus + wire. When I check the IAT with blow dryer and meter the resistance changes either way it is hooked up?
09-16-2011, 04:02 PM
#2
Burning Brakes
Join Date: Oct 2008
Location: Palo Alto, CA
Posts: 972
Likes: 0
Received 0 Likes
on
0 Posts
IAT = intake air temperature? If so, I don't think polarity matters as is just a thermistor. The resistance changes proportionally with temperature, so you apply a constant voltage on one side and read the voltage drop and thereby determine the resistance and hence the temperature.
HTH
HTH