ricin4ever

so guys i have a turbo civic and im looking to move my intake air temp sensor from the intercooler piping to the manifold how do i do this? does it matter what color is where on the connector?

Fabrik8

If it's a two-wire sensor, the connector pinout doesn't matter. Two-wire sensors are just a thermistor (a resistor that changes resistance with temperature) and just like a resistor there is no polarity. That being said, it is good practice (for future troubleshooting, etc.) to keep the same connector pinout as stock just to keep everything straightforward. You'll probably want to get retuned after you move the sensor also, because the different sensor location could give a different air temp reading.

Why do you have the IAT sensor upstream of the throttle body?

ricin4ever

its on a 2000 civic thats just where it was lol

Fabrik8

You want it on the intake manifold if possible. That way you're measuring air temp close to the intake ports, not the air temp before it goes through the throttle body, intake manifold, etc., each of which could have a different temp than the intake air. You don't want to measure the air temp and then heat the air some more after that, for example.

ricin4ever

yeah i just didnt wanna fuck shit up lol

Fabrik8

Well, if it makes you feel better, there isn't any intercooler piping on a stock Civic. So the sensor has to go somewhere.

ricin4ever

well it was in the intake piping so thats where i put it about 4 years ago lol