MrMopar64 wrote:
Was there a CEL/MIL set and an associated P-code set? Usually in situations like this the p-code will be P606 (Internal Control Processor) which is an issue with the controller. For some reason there were some vehicles that had wiring and/or other issues which would cause the no-acceleration situation as described by GilaMonster which coincidentally isn't actually a limp-home. I've run into the same problems with the engines we have on the dyno @ Rose-Hulman - a quick cycle of the key fixes the problem.
There is a point for limp home (when something breaks and you need to get it off the road and/or to safety), but what was described is well beyond that. I wish I had more information for you, but without a P-code and/or being in the vehicle to take a measurement with the compuer it's hard to know exactly what happened.
I did not get a CEL/MIL lamp on the dashboard. I do not have a way to scan p-codes, but could one have been set without illuminating the CEL/MIL light? If so, should I attempt to get the codes read?
As you stated, a cycle of the ignition did seem to resolve the problem, and I have been driving fine since. But, this "problem" put me in a bad situation to say the least. I didn't think to put it in neutral at the time and cycle the ignition. Maybe that would have got me out of the road faster.
What additional information can I attempt to provide to help investigate this situation?