Quits running at random times

The first time this failed engine raced up RPMS 3000 + by its self then went down then raced again then shut off and would start for about one hour or so it has not repeated this again only stops running then after awhile it will start again. Then drive to store okay. Just stops at random? Still should I change crank sensor? And can you give me list of components that have been known to cause this problem please? Thank you. James. When is there anyway to be sure this will fix if not I must change anything known to cause so do not get stuck with wife in car She has MS and cannot overheat in Las Vegas! Also how do I pay you when I get fixed for your help? James

Mr Ken thank you for answering me. I had already ordered a PCM from Flagship and received yesterday. Car will not start after repeated tries last night. So before changing crank sensor should I change PCM? I have not installed yet. Traceace

Ken sorry have not answered, but before I ever started to talk to you I ordered an ECU from Flagship One. They do not require core and was about $180.00 free ship better price and life warranty. Car would not start no matter what after our last talk so ECU came in mail so I changed it, it came pre- flashed to 2018 specs which from auto zone did not plus AutoZone cost over $300.00 so no brainer. So bottom line car started and seems to be running better than before idles perfect and no stalls so fixed it! Do you think I should order crank position sensor and change as well 89,000 miles 1998 stratus? Thank you for input unknowingly I bought right part in beginning because flagship girl Adia I spoke with put in my mind computer should give code which made sense to me. But of course was ready to except if did not work for fix I just wanted to eliminate all possibilities I had to fix the car. It took a few days to get computer. Thank you again for help you were on right track. I only wish you would have given me list of all parts that could cause the problem, I would have got all parts so could fix I had no transportation and wife with MS. I wanted to get all parts when I found a ride to auto parts. Thank you again, Traceace 1

Thank you very much helping me think. I was fleet mechanic for years and started racing in Pomona California. I help build a AA Fuel altered up from gas to fuel breaking the record for AA Fueler Altered 256 MPH in Quarter In 1969 Named THE RAT TRAP. My brain not as good as it used to be. TRACEACE1