Today I went to start my 94 YJ with the 4.0 and shortly after starting the check engine light came on. After driving for 10 minutes she started to hesitate and stumble. The longer I drove the worse it got. I pulled into my driveway and shut her off. I then tried to restart the Jeep and she would crank but wouldn't start. I checked for what code was showing and only had the normal 12, 33, and 55. After letting the Jeep sit for 15 minutes I went back outside and tried restarting. When I turned the keyed nothing happened. I still had power to all accessories though. I tried turning they key several times and finally the starter turned over and the engine stated right up and the engine light was no longer on. What is going on??? Also, I replaced the crank position sensor a month ago. How can the check engine light come on but not store codes?
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