You old pro's will have to excuse my enthusiasm, but I spent quite a bit of time trying to figure out where this sensor was located because mine might be bad. For the benifit of others and to give back a bit for the help I've received here, I've grabbed some pictures that seem to be as rare as photos of the locness monster. (at least from a google or yahoo search)
First let me clear up where this is located for a 5.2L V8 like mine. I've found conflicting information.... it's on the left, right, passenger, driver side. I think this because the location is different for the V8 opposed to the 6 and 4 cylinder and when some one asks, they don't always get the answer that matches their engine. And even if the info given is correct, the description of the location is a bit vague.
So... for the 1994 V8 5.2L 318 it is located on the passenger side, behind and just below the head and below the steel EGR tube going from the exhaust manifold to the EGR valve. The two bolts that hold it on are hex heads that actually face upward, not towards the rear as I might have suspected. It takes an allen wrench to remove them. (Not sure what size yet)
This is my first Jeep project. What gets me is that when I had the manifold and the heads off, I could have just about reached over and had a new one installed in a few minutes. Unfortunately I didn't go looking for it untill the engine was back together and running. Now it's a major pain. If you have a meater arm than I do, it will be darn near impossible to get to.
What I did to reach it was to remove the kick down cable, pull the heater hose out of the way, move the fat wiring harness up and forward out of the way and move the other plug wires, vacuum lines and the EGR valve out of the way. Several parts I tied back with wire or zip ties to make room to reach back there. Becareful not to knock around the oil pressure sensor back there, you might break it. The manual suggest totally removing the EGR valve and oil sensor.
Now the good part... with serveral tries I managed to get my camera down there and get some pics to share. The angle changes as I tried manuvering for better shots. Here's what it looks like hiding back there...
Any body know what that spring is sitting on top of the transmission? Never know what you find in the nooks and crannies.
Also here are photos of the signals coming out of the Crankshaft sensor and the Camshaft sensor at about 1000 rpms. Question for the pros.. the peak voltage is about 2.4 volts. The signals look good, but is that level correct? (back to manual reading to find out) I don't wan't to spend hundreds on sensors I don't need so I'm trying to test all of them before replacing.
** Crankshaft position sensor. Probed at the Red wire with black stipe in the wiring harness running above the driver side valve cover.
** Camshaft position sensor. Probed at the Grey wire with black stipe in the wiring harness running above the driver side valve cover.
I hope this is helpful