Thanks to all sifus,
So far the situation seems to be resolved. The foreman said he said some wiring problem near the ECU but refuse to show which is in specific. He charged me 120buck for so called whole day diagnosing the car. I didn't want to argue or complain on anything instead took the car and walked off since the situation have been resolved most importantly.
See, how much people are being used and misused by workshop guys just because they are lack of automotive knowledge. That is why bro izso, danzeterna, xtremeleo, wira4g13p, and the rest of them should team up and setup a workshop or so dedicated for zth kaki hehe :P
Thanks to all your valuable reply, response, recommendation, suggestion and help. Really appreciate it :)