Hi everyone. I am new here.... I'm having issues with my Jeep and I need some advice. First... I'm in Conroe, TX (outside of Houston). She's a 2002 Jeep Wrangler TJ, X series. 4.0L 6 cylinder, manual transmission. I've had her since 05. In 2018 my engine blew. I had a 2005 engine installed (about 65K on that engine) and had issues starting her. My computer wasn't recognizing the sensors, so we changed those to 02 ones and she started, and soon after, back on the road. Since then I have gotten the oil changed regularly, and haven't done anything but drive to and from work. No off roading, nothing like that. This past November, she started hitching and lurching while I was driving. My mechanic wound up putting a new cam sensor on and a new synchronizer. She was fine after that, until beginning of January. Check engine light came on after the engine started lurching and hitching again. The code was P0340. Different mechanic put another new cam sensor on, and I think ignition coil. Misfiring so they had to put a new spark plug in. Then.... she drove fine. Until Feb 24th... so little over a month later. Again... lurching and hitching of engine and same P0340 code. Took it back to the place I took it to in Jan. This time, the mechanic had no clue and all but shrugged when I asked questions. Now.... he did put ANOTHER cam sensor on it, even tho I told him, with my own research that it could be a circuit issue and not the sensor itself. He said he didn't have the right stuff to do a full diagnostic. So... towed to a different shop, this mechanic had worked on my Jeep in the past. He said the codes were now P0340 and P0320. He checked wires, said they looked fine. He set timing off by 10 degrees, drove her 3 times and said she was good. I got a ride, went to drive out of the parking lot and the lurching happened again, engine rough and check engine light came on. I checked the code and this time it said P1391 Manufacturer Control. Left Jeep there.... and mechanic said on March 3, that she's acting up. Drove it, was ok. Then checked cam sensor wiring...tried to start her to pull her to another spot and started acting up again.... idling badly, etc... I do need to check if he did in fact, get the cam sensor in but I assume he did. He thinks it could be my computer. And they are few and far between. So, I just would like to know if this has happened to anyone else and if it's fixable. I am at my wits end, I'm almost ready to give up but she's my only vehicle.