Components fitted to vehicle
Converting your vehicle to take advantage of the numerous benefits of LPG requires the installation of a small range of components to the existing vehicle hardware.

The new hardware, which is highlighted in the above image is minimally invasive to existing systems and components. This results in all normal vehicle and engine functions remaining unaffected after having LPG compatibility fitted.

The ECU
The Electronic Control Unit processes signals it receives from sensors mounted on the engine. This information is used to optimise fuelling, emissions and driveability.

The ECU also has On Board Diagnostics (OBD) capabilities. This monitors the LPG system and undertakes relevant remedial action in the unlikely event of system or component failure.

The Filter
This is used to filter the LPG (in a gaseous phase) and is located between the regulator and the injector rail. The filter contains a cartridge, which removes matter above 80 microns in size.

Maximum operating pressure is 250 kPa.

The LPG Tank
LPG is stored, under pressure, in an LPGA approved tank. Tanks are available in a range of sizes, in either a toroidal or cylindrical configuration. This enables a wide range of applications to be accommodated.

To avoid losing boot space, the toroidal system is commonly installed in the spare wheel well.

The Vaporiser / Regulator
This is a compensated, two-stage diaphragm-type regulator/ vaporiser. It incorporates a water-gas heat exchanger, an internal safety valve and a gas solenoid valve with in-built filter.

Effectively, it takes the liquid from the LPG tank and turns it into a gas whilst controlling the gas pressure.

The Injector Rail
The pressure and temperature of the LPG is monitored within the injector rail. From here, the LPG is delivered to the intake manifold via a series of injectors, which are controlled by the ECU.

The number of injectors used corresponds to the number of engine cylinders and their configuration.

The Switch
This component serves three purposes:

1. It provides the driver with the ability to switch from gasoline to LPG and vice versa.

2. The quantity of LPG fuel in the tank is indicated by a combination of 5 LEDs.

3. A buzzer will sound in the advent of a diagnostic failure and automatically switch back to gasoline.