Through connection to the vehicle's OBD socket, this new generation of GAS control units makes it possible to acquire information useful for properly setting up the vehicle.
Several carburetion parameters acquired from the PETROL control unit can be seen using the special software for connecting
The GAS control unit to the PC, such as:
Carburetion calibrators (Fast and Slow).

When the changeover switch indicates the fuel tank is in reserve and the gas pressure drops below a set value,
The control unit automatically switches over to gas. This prevents the engine from running with an excessively lean carburation, thus damaging the catalyser.