@usmanuetian I am runing car on petrol only,cng parts are removed & placed at home.you pointed well.when carburetor was changed with qabli car wasn't starting so electrician repaired something under dashboard where fuses board is, he told fuse is damaged & then he made wire direct I think.then I asked him about petrol cng switch he told as car is only on petrol now so it doesn't matter which light on switch is ON but I keep it on petrol only. I never used cng so far.Also I suspect some fault in ignition switch where key is entered, I feel it behaves free sometimes.anyway I will get all wiring repaired or replaced with new next month & make it clean, neat wiring along with checking of all electrical parts,fuses boards, switches etc.
Can we upload videos here in forum?i have some clips of my car radiator showing air bubbles in water.