This was the position when i disconnected the air pipe:
1) Switch was getting power from some fuse in fuse box.(pic 3)
2) Yellow wire going to injectors was T jointed below steering and that wire (shown white in color. some idiot had connected this white wire with yellow one) was connected with some blue wire going towards back of the car. I suppose this is going to the fuel pump in tank. Moreover, this blue wire cut and connected from fuel tank side to the white wire.(Pic 2). Please note that this T joint is in addition to the one (relay T joint) i mentioned in my earlier post.
Now what i did is that i removed all the wiring from CNG kit. removed that relay. Connected injector wires together. Then tried to start the car. It started for just like less than 1 sec and switched off itself. I tried again it refused to start. Afterwards i connected those blue wires but still the same. Car is refusing to start.
What should i do now or how should i troubleshoot ? Please help as it here there is no mechanic available here. Moreover what is this thing shown in pic 5 and pic 6.