A CNG conversion is more than bolting a kit into a car. Done properly, it is a sequence of stages, each of which depends on the one before it. Here is what each stage involves and why it matters, based on the way our own team works.
Stage 1: Assessment
Every conversion starts with the vehicle: its engine, its condition and how it is driven. The assessment confirms whether the vehicle suits CNG at all, and gives a breakdown of the cost before any work begins. Compatibility is never assumed from the model name alone.
Stage 2: Kit selection
With the engine understood, the system is chosen: the kit type (for example a sequential system for a fuel-injected engine) and a cylinder capacity that suits the daily range. Read more in how to choose a CNG conversion kit.
Stage 3: Installation
The cylinder is mounted securely, the high-pressure line is routed, and the reducer, injectors and ECU are fitted and wired. Neat routing and secure mounting are not cosmetic. They protect components from heat, vibration and damage for the life of the system.
Stage 4: Calibration and testing
The kit’s ECU is calibrated to the engine so that gas delivery matches what the engine needs across its operating range. The system is leak- and pressure-tested and road-tested before handover.
Documentation and registration
A converted vehicle’s change of fuel needs to be recorded with the transport authorities, and kits and installations are covered by the AIS-024 and AIS-028 standards. Procedures can differ between states and change over time, so ask your installer which documents they provide and confirm the current process with your RTO.
See the process in detail
Our four-stage process explains what you learn at each stage. Ready to start? Book a consultation.
