Doubt it, OBD1 cars the connector was manufacture specific and not likely these stores will have the equipment [/quote]

Thought so.

Was the battery disconnected while at shop?? Could be the computer "relearning" itself.. Could take up to a week or so..

Seen this on GM's, not sure on mopar...

It was during the work, clock was off, and I think it went dead on them while there.

The biggest problem I saw with them was plug wires. Also make sure the plugs are ok as with 100,000 mile plugs I used to get them missfiring at 80,000 miles many times. Normally if the fuel pump is going bad it wont just feel like a missfire but will backfire and feel like the car is laying over and running out of gas. Or it will just stop running. Have someone who knows how to read a scanner check it as they can look at the adaptive fuel readings and tell if its has been running lean which is another way I could tell if the car had a fuel starving problem. But the way you desribe it to me it sounds like plugs or plug wires. Good luck , Ron

Im with 383man on the plug wires, I had a 3.5 in a new yorker and it was doing this so pulled the wires up off the plug and one had what looked like a black arc mark so I wrapped black tape aronund and put it back on which was the problem

I was getting EGR codes on my '97 Concord 3.5 It turned out to be a leaky lower intake manifold gasket. I was able to mask off all air openings at the throttle bodys, EGR, and vacuum lines and the car still ran on the air getting past the manifold gasket. Not too difficult to change out both the upper and lower manifold gaskets.