P0340 code won't go away! (Long)

98 xj classic 4.0 Auto. O.K. it was running poorly for a while, every now and again stumbling. Finally tripped a code and checked it. po340. Eluded to the cam sensor so ended up replacing entire distributor (it was loose and so was going to go anyway). Cleared code drove around came back on. Replaced crank sensor and cap/rotor/wires. Running great now but code came back on next day coming home from work last night. I thought check wiring again and decided to check coil wires. After finally getting the tape back to get to about 5" of wires I noticed they were smashed together pretty good. Almost like speaker wire is. I pulled them apart and didn't notice any torn insulation but I wrapped each wire and moved the harness to the other side of the distributor to get it away from the motor. When I turned the switch to "on" to clear the code, it dissapeared itself.

Now it came back on this afternoon. Yikes!

Anyone have this experience or any other causes the P0340 may elude too?

Still running great so far.

Thanks in advance.

Anyone, please?
Still running great but for how long? :confused1

this might help...
http://www.askamechanic.info/askamech2/content/view/36/46/

That's an awesome write-up but I have the older ignition with cap/rotor. I found the FSM for testing cam sensor wires and PCM so hopefully that will work out.
Thanks!