1996 Dodge Caravan Perplexing problem - codes on and off

Thanks Joe. Can you tell me where I find an ohm meter? I've never used one. Last time, it died on the freeway and I was too scared to get out and do anything there. I just waited til it started. (I'm female)
Anyway, I do know a little about cars. How would I ck to find a burnt fusible link or where should I look for a corroded wire. It did once before when a wire was corroded but I don't know where it was located and the mechanic is no longer in town to ask. I cringe at the idea of waiting for it go dead again on the freeway. According to the codes, the logic module could also be the culprit. This is difficult because I can't isolate the codes, all four codes come up together. Like they are all linked. Is there a way I can have the coil tested?

Thanks. I'll be checking these possibilities out tomorrow. I'll let you know what I find out.

Appreciate your help!

I went over to Autozone today because I could not locate the coil to do the ohmmeter test. Turns out you can't get to it unless you remove something. Anyway, they gave me a mechanic to contact, he is looking at it tomorrow evening. Said it may be something simple or it may just need a tuneup. Anyway, guess I'll wind up paying out some money but at least I think I'll be treated fairly. Will let you know the problem after they figure it out for sure. This mechanic has a $4000 piece of equipment that pin points it. That should be better than the guess work I've been doing, but I like knowing the direction, and that's why you guys are helpful.

Thanks.

Hi Joe,
Looks like I just need some new wires and distrib. Cap. Also a tuneup. Thank goodness it is a simple thing. All is good.

Thanks Joe. I have already discovered that and have scheduled the work to be done on Wed. One question though, every now and then the car simply goes dead while driving on the freeway. But then, it drives fine after it finally starts up again. Can bad wires cause that?

It does not start right away. Takes about 10 to 15 minutes.

Joe,
After considering your response about the wires, I have postponed my trip to the mechanic. I probably will have new wires later but don't feel that's the real source. Gonna wait and see. Seems to be running ok for now.

Ok, here's the update. Last night I had to call a locksmith over to replace my ignition because my key was frozen. Even after he removed the ignition, the key is still in there solid. Anyway that cost me $160. The money I was planning to use for the tune up. So tonight, the car dies on the street, I pull over and it sat there about 15 minutes before it would start again. Now, in order to keep it running, I have to leave the AC off and the radio because it dies. Seems not to have enough electricity moving. I am going ahead with the wires and tuneup tomorrow night because I am now desperate and don't know what else to do.

Any suggestions?

I located my old mechanic who has great diagnostic tools. He has pinpointed it to the wiring bundle, the 12 volt wires, electrical components. Some of those are shorting out. We are now in the process of singling out the bad one(s). It has nothing to do with distributor wires or tuneup or any of the things I was being directed to do. He says if we don't find the bad wire, none of those other things will fix the problem - even though it can use the tune up of course.
So glad I did not proceed with the other mechanic. I trust this guy to give the straights on this.
I'll give you an update to let you know which wire it is.
Thanks for your time.

Ok Joe, here's the scoop. After all the detective work, it turned out to be the throttle position sensor. Here's the thing to remember if your car has these symptoms:
Shudders and stops running.
Sometimes won't start but will try.
Sometimes runs like it's got bad distributor wires.
Inconsistent. Sometimes runs perfect.

Here's what you do if any of the above happens. Turn off the car completely as if you are leaving it. Put it in park, turn off the ignition and remove your keys.
Now, put the key back into the switch, turn the car on. If it cranks right up, you'll get to your destination. If it has trouble, repeat the exercise until it doesn't.

Call your mechanic and have a new throttle position sensor installed. It'll cost you about $80 for parts and labor.

This was a very difficult thing to pinpoint because the bad wires were prompting all the codes and most were dismissed because they were considered irrelevant. Once the wires were fixed, the codes were cleared. But when codes returned the one for the throttle showed up - not on my dodge codes but on the mechanics scanner (a very expensive gadget) and he pinpointed it.

Hope this might help someone.