1. Fuel System:
- Fuel Tank: A separate LPG fuel tank is installed to store the LPG. The tank is typically mounted in the trunk or underneath the vehicle.
- Fuel Line: A dedicated fuel line is connected from the LPG tank to the engine.
- Fuel Injectors: The petrol injectors are replaced with LPG injectors. These injectors are designed to deliver LPG into the engine's combustion chambers.
2. Air-Fuel Mixture Control:
- LPG Mixer: An LPG mixer or vaporizer is installed. This device converts liquid LPG into a vaporous state and mixes it with air to create a combustible fuel mixture.
- Air Intake System: The air intake system may require modifications to accommodate the LPG mixer. This may involve installing an adapter or replacing the air filter housing.
3. Ignition System:
- Spark Plugs: The spark plugs may need to be replaced with LPG-specific plugs. These plugs have a wider gap and are designed to ignite the LPG mixture efficiently.
- Ignition Timing: The ignition timing may need to be adjusted to optimize the engine's performance on LPG.
4. Engine Control Unit (ECU):
- ECU Reprogramming: The ECU, which controls the engine's various functions, may require reprogramming to account for the different fuel properties of LPG. Some vehicles may require a separate LPG ECU or an add-on LPG controller to manage the fuel injection and ignition timing for LPG operation.
These modifications are typically performed by qualified technicians or professionals who specialize in converting petrol engines to run on LPG. It's important to note that the exact modifications required may vary depending on the specific make, model, and engine of the vehicle being converted.
