bro firstly u got problem with ur cng convertor switch most probably its wires are joined due to which the problem occurs,sometimes it also happens when the fuse blow off or are in a bad condition,2ndly which is ur ride which ur trying to boost more then 120km/h ?
1. Check CNG conversion switch
2. Check connections on the CNG kit for rust
3. You'll have to install a "relay" to normalize the current flow to the CNG kit as converter's magnet has become weak and needs proper current to be kept on path. Any electrician would do it. Ask them to put relay to CNG kit (if needed)
thnx SLAYER.. wiring mai masla tha yaar .. last night i tried to solve the problem on my own & accidentally i messd up the PROGRAMMING of the CNG device ab cng chahay empty ho but lights pori jalti hain means 4 points greeen 24/7 .
mechanic in my area told me tht now ive to go to jail road for programming which costs 200Rs..