Painless on my '84 CJ-7
Did the Painless install (Basic Wiring Harness) on my '84 CJ-7 a few months ago.
1.) I didn't have a ballast resistor. I currently have an MSD-6 Ignition, but even with the old Mopar ignition module, there never was a balast resistor. You may have one, you may not. Knifeboy has the best description on where to find it if you do.
2.) For the starter solenoid on my '84 CJ-7, I was battery side, S was Solenoid side.
3.) The ECU? Is that the Ignition Module? I had issues with Painless calling out color codes that didn't match as well. If you have your old harness, can you trace back the functions of the connecting plug, and match those to the intended functions of the Painless harness? A Chilton Manual is VERY helpfull here.
4.) There should be 3 wires coming off the distributor. One is ground, the other two should feed back to your Ingition Module. Your distributor may have 2 wires (and no ground) though. If they aren't there, you may have a bum distributor. The Ignition Module requires the feedback for it's timing.
5.) The brake switch has 2 wires. You only need to connect one of these to the painless kit. Either one will work. Depending on the switch, you may need to ground the other wire, but wait to do that until you have the tail lights wired in, and can test the circuit to make sure you don't short something.
6.)No clue what your looking at on this one.
AMC 258 Stroker
Centerforce II Clutch
1" Body Lift
1" Shackle Lift
33x12.5" SSR Tires
Painless Wiring, Stainless Steel Dash