1994 Chrysler Lebaron / convertable

I recently purchased a '94 Lebaron with a 3.0 v-6 (Chrysler transmission) w/approximately 150, 000 miles on it not long after I purchased it, it began dieing when driving it and it would/will not start for varying lenghts of time ( approximately 5-7 miles down the road) I was recieving fault codes ( 3-key .codes) for different sensors and replaced all of them ( idle speed-oxygen - & one other similiar I can't think of right now) this did not help.. I took it to the Chrysler dealership and they ran a diagnostic and told me it was the pick-up in the distributor so I changed that...no help, I took it to someone recommended to me and he told me the power control module was bad so I sent it to the manufacturer and had the power distribution pak rebuilt, no help. I was recently told that the wires on my battery were in bad shape and this was causing it... but when the car dies (and it dies suddenly not roughly one second its running and the next its not) It will turn over easily it just will not try to start for a period of ten minutes up to an hour. I'm tired of the guessing and would like to fix this durn car once and for all it is in mint condition except for this engine problem... can you help me with this...
and one other thing I forgot, It had a keyless entry/alarm at one time and the wires were not taken out neatly when it was removed ... but this car did not have the dieing problem for the first month -month and a half after I purchased it...