bro can you please guide me a little about the EFI system, this is my first time i have bought a car with EFI system, i am not sure about how EFI works, how conversion works from petrol to cng or cng to petrol, i have that efi cars needs petrol to start the engine than thay automatically convert to cng, what is this?? and if it works like this what if there is no petrol in the car or what if i want to run on petrol only but as i heard it will automatcally convert to CNG? how can i then drive on total petrol.