CNG Kits are additional equipment that when installed with a Car Engine, can consume CNG as fuel instead of petrol. In small vehicles like cars, only petrol to CNG conversion kits are available however in heavy vehicles you can convert diesel vehicles to CNG. CNG is an alternative fuel to gasoline. CNG Fitted vehicle can run on Compressed natural gas as well as its parent fuel (Petrol or diesel). After the end of CNG pressure in the fitted CNG Cylinder, the Vehicle engine automatically turns to use its native fuel and a beep is sent to the driver for fuel option change.
CNG Kits are two types. Conventional CNG Kit (Old Model Kit) and Sequential CNG Kit (Sequential Injection CNG Kit). The Working System or mechanism of both kits are different. A Sequential Kit has some extra parts known as injector rail that transmits CNG fuel directly into the engine.