On a 1990 Jeep Wrangler, the IAT sensor is located on the intake manifold. It is a gray, two-wire system situated on the front of the manifold.
The MAP (Manifold Absolute Pressure) sensor on a 1990 Nissan 300ZX is typically located on the intake manifold, near the throttle body. You may find it mounted on the driver's side of the engine, attached to the intake plenum. It's a small sensor with a connector plugged into it, usually positioned for easy access when performing maintenance.
it is in the exhaust manifold,or exhaust pipe...
According to my books the only model that has an inlet air temperature sensor was the single overhead cam models. Unfortunatly I don't have a diagram but I would suppose that the sensor is in the throttle body somewhere or perhaps part of the manifold pressure sensor.
There was no 1990 Chrysler Cirrus. Look on the intake manifold or hoses for the intake temp sensor.
It is located in the exhaust manifold.
on the back of the block by the exhaust manifold
The oxygen sensor is located on the exhaust manifold and is the only item on the exhaust with wires going to it.
on the rear exhaust manifold, directly behind the motor
You want to look on the intake manifold on the Jeep Wrangler.
It is screwed into the exhaust manifold on the back of the engine.
coolant temp sensor fault