hey kashaziz for how much did u get khyber 92?
Well as far as my idea is concerned, almost 3 years or more back, when CNG wasnt too common, the cng kits initially introduced, didnot hav cng reading indicator lights, it was introduced later. Those CNG n petrol conversion buttons used to be with an extra button is the device, commonly used as a choke! anyway u can anytime get this button changed from any cng fitting shop n it will cost u some what around 1000! but i still prefer the switch u`ve coz, the new device doesnt have any choke button, which is quite helpful when ur car has starting problems!