I have been chasing an issue with my 91 xj for two years now. I'll be driving along and it will start hesitating repeatedly. I found a wiring and grounding issue and its been fine for 6 months. I've checked and my fuel pump is working fine and I have spark at the plug. It will catch for a split second then hesitate a few times and die. I'm not sure if it has any bearing or not but the fuel gauge stopped working about the same time I started having this issue. Anyone please help! I'm stick in bear lake