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Open loop

(with single point inductive gas mixer)

'Open loop' is the simplest and oldest design. A single point gas mixer supplies the engine with gas vaporised by the vaporiser according to a fixed and preset ( but adjustable) level. The gas is then mixed with air and the fuel gas is created. When running on gas either the carburretor or basic fuel injection are deprived of petrol by a fuel cut off valve, relay or electronic 'emulator'. A fuel changeover switch of one type or another will be fitted inside the vehicle.

This system is not 'intelligent', it cannot vary the fuel / air mixture according to any information available apart from its fixed settings and thus has shortcomings. That said, it is relatively cheap and ideally suited to older vehicles having a carburretor (or more than one) or very basic fuel injection. LPG economy can be quite good as long as the system is correctly fitted, its components carefully chosen, then properly set up and adjusted.

Open loop

(with single point inductive gas mixer)

'Open loop' is the simplest and oldest design. A single point gas mixer supplies the engine with gas vaporised by the vaporiser according to a fixed and preset ( but adjustable) level. The gas is then mixed with air and the fuel gas is created. When running on gas either the carburretor or basic fuel injection are deprived of petrol by a fuel cut off valve, relay or electronic 'emulator'. A fuel changeover switch of one type or another will be fitted inside the vehicle.

This system is not 'intelligent', it cannot vary the fuel / air mixture according to any information available apart from its fixed settings and thus has shortcomings. That said, it is relatively cheap and ideally suited to older vehicles having a carburretor (or more than one) or very basic fuel injection. LPG economy can be quite good as long as the system is correctly fitted, its components carefully chosen, then properly set up and adjusted.

EZ Pro and EZ Pro Light are the latest and most advanced system released under the GFI banner. Optimizing and combining advanced software and components, both the systems, delivers near to similar characteristics of a dedicated sequential LPG injection system without using an existing vehicle specific calibration. EZ PRO and EZ Pro Light is EOBD compatible and the core elements of both the systems are nominated by the leading global OEMs. Using EZ PRO and EZ Pro Light you can be assured of outstanding performance and a complete driving experience.