how can i solve it

Question

i changed the solenoid, i changed the battery and i changed one more switch. filter and oil as well all are original parts and im still having the same problem. check engine light comes on and the car doesn\'t shift. when ever i reset the car. it works normally for couple of days sometimes 2 minutes and the same problem comes up and some time couple of days. specially when i turn to the right for example its like i shifted the gear to Neutral and then check engine comes on and gear stops shifting. it gets stuck on the 2nd gear i guess.

Please help it has been 3 months now and i still don\'t know what to do.

Its JK 2009 sahara / automatic