The Jeep Grand Cherokee didn't exist until 1993.
if they are the same engine then yes.
Below
on the bottom of the oil pan
It is in front of the starter on my van.1990 350
On my 1990 Cherokee it is on the drivers side underneath against the frame follow the lines
it's located under the intake manifold. the knock sensor is most likely ok' the porblem is the short wiring harness from sensor to main wire harness.
oil pressure switch or knock sensor
It is screewed in the engine block over by the starter.
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 knock sensor on Nissan 300ZX non-turbo from 1990 thru 1996 is located below the lower intake manifold on the rear of the engine block. To replace the knock sensor the upper and lower intake manifolds need to be removed. It is always best to replace the knock sensor with a new one considering its major dissasembly.
The knock sensor on a Chevy Celebrity 2.8 L engine from 1987 thru 1990 is located on the back side of the engine(next to the firewall) below the exhaust manifold. There are actually two sensors there, one is the knock sensor, the other is the crankshaft position sensor. The knock sensor is threaded into the block with a pipe thread, the crankshaft position sensor is held in with a 10 mm screw and is near the center of the block. They are both accessible with the engine in the car, but they are a bit of a pain to get to.l