TJ stalled in traffic

No it doesn’t.
But it does sound like a heat related sensor or component failure.
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
This sensor won’t test like that. Running continuity through a transistor that requires a magnetic force to pull down the circuit to make a square wave won’t work without a 5V source. It is true that heat can cause the transistor to fail. It’s quite common, but the test method is a no-go. You probably tested a permanent magnet Hall effect type sensor that makes its own voltage.
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
On the ground note...not really. You have a great ground connection or not. As in that connection will be extremely tight and wouldn't allow seepage of anything to come between them. That said if your contact between them is shitty then yes it's possible. Still unlikely but anything is possible.

Perhaps the pcm as well. Add that to your possibles
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
First explain this? :unsure:
2002 Wrangler Sport
What kind of transmission is in your Wrangler? 42RLE

p.s. Have you had the alternator and battery tested?
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
By any chance did you happen to notice high idle or hunting rpm's when in neutral/park, or sitting at a stop light?
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
I had 3 stalls that happened when going from hard throttle to off throttle in the month leading to my fuel pump going out. It never did just buck on my though. Just lost go juice
Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
IF you have checked the items that I previously suggested then you want to move on to testing the CPS. There are several ways to test the CPS, but checking the reference voltage, measured voltage with engine cranking from the CPS to the PCM and the CPS ground would be the best way.
I have attached a link showing the steps for testing.


Correction: The coilpack fixed the sputtering and lack of power. Died today on the freeway and gave a 0320 code. New crankshaft position sensor fixed the jerking/stalling.
 
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bruh... stop replying to everyone. We all get notifications that you've commented. If you do end up fixing this issue, this thread will be useless for someone down the road with the same problems.
 
You need to look at your wiring integrity to the crank sensor. You should be able to take advantage of bias voltage on the signal wire. With a T pin, back probe the signal wire with the key on. Don't worry about the initial reading. Unplug the sensor. Your meter should jump to 5 volts. Then, while watching your meter, move the harness around. Look for any points of contact on your harness. While wiggling the harness and physically attempting to short it to ground, if your meter goes to zero volts, you've found a short to ground. This is what it sounds like to me. If it were a short on the 5v reference, you'd pull down multiple sensors at once and have many more codes. I believe that you have an intermittent short, or loose pin on your signal wire back to the PCM. At least, that's what I would test for next.
 
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