The tps (throttle position sensor) would be found on the throttle body, opposite side where the throttle cable is connected.
Below
The Jeep Grand Cherokee didn't exist until 1993.
It does not have a mass airflow sensor.
It is inside the distributor.
A 1990 Jeep Cherokee does not have a reset switch. The fuel system is computer controlled. If not functioning properly there could be a fuse or sensor malfunction.
The oil sensor is located above the oil filter next to the distributor.
above the filter
Inside the distributor.
The cam sensor is inside the distributor.
The 1994 Jeep Grand Cherokee IAT sensor can be found attached to the air intake hose. The IAT sensor will be near the air filter box.
It Is In The Gas Tank
in a toilet