206 idling and brain problems

Hello friends. My vehicle is 2001 206 xt tube.
The oil of the vehicle was low, the master added oil. Although my speed was 100-110 after 15 km, the temperature started not to exceed 2000-2500. I stopped, the car started to move up and down between 5-11. The master came on the pc tactical ignition system 1 and 4 malfunctions. Coil changed, spark plug changed same error. He continued to give the same mistakes in the workshop. As you know, the holiday is closed everywhere. He said that when he called yesterday, the problem was going on and that ignition system 1 was failing and that he would look at all the solutions, and the last resort was to have the program put on the brain.

What do you think is the vehicle? I had no problems for months, no idle, no idle, overheat, water reduction etc. Thank goodness .. Is there anything to do with the lpg installation? If it happened to you, if you have such a situation or knowledge, can you share it ..

Is it too costly to have a program put on your brain?