I`m having this jeep in my garage. It has intermittent non running problems. I mean the engine always starts and runs but just for 1-2 sec than cuts off. There are no fault codes in the ECU. Every 10-15 times try the engine runs fine with no problem. I have checked every signal with my Pico and all signals are looked good. The engine stops because the injectors are no longer getting signal from ECU. In that case it`s not an immo fault. This engine is a chain driven engine and to check the timing it`s a pain in the hole. Sadly I`m not really a Pico expert so when I checked the crank and cam signals relations and I`m not sure they are good or bad the timing it`s ok or not?!
Also the automatic gearbox doesn`t change gears in Drive mode and I can`t communicate with it. I don`t think this has anything to do with the "non running" issue.