There is NO scanner/Computer plugin on a 1993 Jeep, they didn't come out with it until 1996..
I had a 94 and it didnt have it either..
Sorry,
John V..
An OBD 1 scanner with the Chrylser plug adapter.
The spark plugs on a 1993 5.2 L should be gapped to .035 inch.
OBD 2 doesn't send information any where it has to be read by a person with a scanner when the scanner is plugged in to the dlc plug with the in the on position
The spark plug gap for the 1994 Jeep Grand Cherokee 5.2L (318CID V8 is .035".
It can be done, but it won't be a simple "plug and play" swap.
.034
1998 Jeep Cherokee 2WD 4.0L MFI 6cylThe Spark Plug Gap.035 (In thousandths of an inch)
.035
.035".
check the spark plug wires and the distributor cap wires
The fill plug is on the center of the rear of the transfer case.
It usually cast onto the intake manifold for Jeep.