Perhaps I used the the wrong word (switch) because of translation problems. I suggested before that you take out your engine computer and change it for the computer of a similar Jeep. I did that after renewing a lot of sensors and wires and discovered that there were no problems any more. Some time ago you said that first you would change the coil, after that I did not see that you tried to change te enginecomputer, so I suggested it again. Cost you nothing but time.