OooohKay.
thinking this might be electrical connections, I took the ECU connectors both off and shot them with electrical cleaner, cycled them while wet, let them dry, and the Jeep seemed to be running a bit smoother. It ran OK on short runs around the house, no codes, no issues except one instance where I was going up a very steep incline (~15 degrees) and when I accelerated it quit. Just quit. Splah. Shift into neutral, restarts and goes on up the hill no problem. Ran it for a few days on short trips, no problem.
This is good!
So I decide that I am going to drive the Jeep to work and back and see what it does.
Very interesting. At some point along the way, the Jeep went into some sort of limp mode. No power; would barely accelerate, but no missing or rough running, just no power. I was afraid to shut it off on the way in, so I just ran it like that for at least 30 miles.
Parked it, and it restarted immediately. So I went in to work. About 9 hours later, came out to go home, started it, and voila! runs like a new jeep! For about 8 miles. Once it got good and warm, it went into limp mode again. No power. AND, when I really push on the accelerator, it quits. Splah. DRT.
Shift to neutral and it restarts while coasting, back into drive and a few miles later, limp mode again. Again, if I push hard on the accelerator, it quits. This happened repeatedly over about 40 miles.
Next morning, fires right up and runs just fine, but I did NOT drive it to work.
So why would it go into limp mode like that after driving for 8 or 10 miles? I am truly baffled. Still more baffling is why it shuts off suddenly when I press the accelerator pedal. This rates about an 8 on my weird-shit-o-meter, and is truly some seriously weird doo doo. Bad injector, ok, I get that. Bad sensors, OK, I get that. But mysterious quitting and going into limp mode because it gets warm???? Really? The only code I get now is low air flow.
Advice from another poor person who has dealt with this much appreciated.
LMW