All you need is for the fuel shutoff solenoid and that can be the old ignition wire to the spark coil from your old gasser.
As far as the sensors, there really aren't any. The sensors can be adapted with fittings to run stock Jeep sensors on the diesel motor except of course a boost/manifold pressure gauge which the gasser wouldn't have had.
The starter solenoid and starter get wired up just like any other starter, basically the same but the solenoid is sometimes on the starter instead of on a fender like the Ford style movable shoe starters used in a lot of 70's, 80's and some 90's Jeeps.
I stripped all the wiring out of my CJ and got rid of everything that wasn't needed. Kept the sensor wiring for oil pressure and used the positive wire that used to go to the coil on the fuel solenoid.
The alternator is a GM style and uses a 12SI or some such. It wired up the same as the old 10SI that was in the CJ originally so no changes there. The RPM tach can be connected a couple different ways. On my Jeep the tach could run off a wire on the alternator or for more accuracy I could get a crank sensor kit and run it off that. It is running off the alternator for now which gives close enough general RPM indication to give a ballpark RPM. I know it may be a couple hundred R's off but it has a governor spring that won't allow the engine to over-rev and therefore protects it from exceeding around 3,750 RPM or there abouts.
Originally the governor spring was set for 2,750 so I changed it to 3,200, then again to 3,750 but I never get even close to that RPM cause it sounds way too high just by the noise it makes.
Not sure what exact year you have but for emissions legality in the 50 states, the engine should be the same year as your Jeep or newer to comply. Not saying whoever swapped it complied but if the states testing gets involved or an inspector has to sign off, you'd better tell them it is the same year or newer for legal reasons.
RR
As far as the sensors, there really aren't any. The sensors can be adapted with fittings to run stock Jeep sensors on the diesel motor except of course a boost/manifold pressure gauge which the gasser wouldn't have had.
The starter solenoid and starter get wired up just like any other starter, basically the same but the solenoid is sometimes on the starter instead of on a fender like the Ford style movable shoe starters used in a lot of 70's, 80's and some 90's Jeeps.
I stripped all the wiring out of my CJ and got rid of everything that wasn't needed. Kept the sensor wiring for oil pressure and used the positive wire that used to go to the coil on the fuel solenoid.
The alternator is a GM style and uses a 12SI or some such. It wired up the same as the old 10SI that was in the CJ originally so no changes there. The RPM tach can be connected a couple different ways. On my Jeep the tach could run off a wire on the alternator or for more accuracy I could get a crank sensor kit and run it off that. It is running off the alternator for now which gives close enough general RPM indication to give a ballpark RPM. I know it may be a couple hundred R's off but it has a governor spring that won't allow the engine to over-rev and therefore protects it from exceeding around 3,750 RPM or there abouts.
Originally the governor spring was set for 2,750 so I changed it to 3,200, then again to 3,750 but I never get even close to that RPM cause it sounds way too high just by the noise it makes.
Not sure what exact year you have but for emissions legality in the 50 states, the engine should be the same year as your Jeep or newer to comply. Not saying whoever swapped it complied but if the states testing gets involved or an inspector has to sign off, you'd better tell them it is the same year or newer for legal reasons.
RR