2001 dodge caravan sport, v6 quit running as I was driving down the road. It will start but only run at 2 / 300 rpm at idle, very shaky. Can not drive it live this, no power.

First, I'm not a Dodge Mechanic,
* I had a 2001 Caravan with the same problem.
* Sorry, but your transmission is bad. No way around this other than to change it. I was offered a rebuilt trans for a total of $2,300 (Hawaii). New ones runs $5K so I figured (2008) that the caravan was not going to last another 10 years (came with a 5 year warranty) I could live with only 5.
* I've found the caravan and similar mini vans all has trans problems.
* Find yourself a reliable trans shop and have it replaced.
* By the way. My nephew is driving the caravan as of 2018. Still good. (well the trans is. Ceiling cloth hangs, radiator was replaced 2016, Water pump 2017.......)
Aloha, ukeboy57

Replace your MAF, its a little pricey around $280.00 or so but this will clear the code but make sure you have the ECM reprogrammed to perform a "learning" sequence since sometimes the code will not clear even though the vehicle will run like new. This reprogramming will most likely have to be a dealer performed procedure.

possible catalytic converter plugging up check spark plugs o2 sensor

If the problem is a lack of air flow from the vents, and you suspect the blower motor is not running at times, you would need to test the blower relay and blower motor for power and ground when it is not working.

run the fault codes
possible a vacuum leak
when it happens, leave in drive apply the handbrake and take the foot of the brake
if it fixes the problem . replace the brake booster

Could be that your coil pack has gone bad. This is not a cheap piece though, so you will want to be sure.

Does it run fine when up off of idle, or does it also seem to be missing as you drive down the road.

Change the belt tensioner. It may be losing spring tension. Also belt dry out quickly try some belt dressing sold at any good outo parts store.

IS THAT AT IDLE OR WHEN YOUR DRIVING?

YOu should be able to tell if coolant leaks caused the coil pack to fail. I believe it is 2 issues.