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g6civcx
11-28-2009, 08:24 PM
Everyone seems to think that pin 45, Blue/White wire on the redtop S13 SR is the Intake Air Temperature Sensor.

I can't find where thie wire goes.

The F3 plug also has a Blue/White wire that goes to the IAT sensor near the intake, but this circuit is not connected to pin 45.

What is pin 45 and where does it go? I want to find where this wire comes out on the engine harness.

I have a brand new S13 SR engine harness right here and I can't find the connection by probing. The worst case scenario I will open up the harness and look, but I'm hoping if someone already knows could point me somewhere.

g6civcx
11-29-2009, 08:50 AM
Pin 45 goes to the gray plug by the battery. It's not needed since the body harness has no AIT sensor.