Where is the IAT sensor located in a '91 cherokee? And which 2 of the 3 wires lead to the IAT sensor?

 

In the intake manifold.

 

X2

 

I believe IAT, TPS, IAC and MAP are all in the intake manifold/throttle body.

 

Map is on firewall.

 

My bad, I stand corrected.

 

It's the only sensor that is screwed directly into the top of the intake manifold towards the firewall. It's only a two wire sensor. I moved mine to the airbox lid and noticed slightly better fuel mileage and smoother running, not bad for a free mod.

 

Jeep must have moved the MAP sensor from the firewall in '97, maybe sooner, to the throttle body. I believe the IAT sensor is shown to the left of the MAP and in the manifold.

http://www.jeepforum.com/forum/f11/r...ssfire-572572/

 

Here you go.

From a 91 Laredo