My experienced while im studying

Most of the technicians don't have knowledge about automobile wiring. I studied Automotive Services National Competency II. And this only for 5 months and every topics are very important. I was willing to know about how to repair some parts of the engine. And now i know how to overhaul engines, how to grind the valves, and how to know if the the pistons are not good. Thanks to god i know all this.:)