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  1. Join Date
    Mar 2008
    Posts
    128
    #11
    Just to make things clear. There are two types of conversions for efi engines currently.

    One is the emulator/venturi system that uses a mixer where lpg passes through. This system is a single point delivery system. Basically this turns your efi engine to run as if it were a carburetor engine vehicle through an emulator. In this type of system there are two variants the open loop and the close loop. The difference is the closed loop is hooked to your oxygen sensor and the open loop is not. An oxygen sensor is basically a sensor that measures the oxygen content of your emission. This is basically to determine if you burn the lpg or your petrol properly. You do not need to have an oxygen sensor installed in your vehicle to determine this you can actually go to an emmission center to do this.


    The second one is the sequential gas injection. This is by far the purest form of gas injection currently available. This is a multi-point system directly injected into your intake manifold. Auto-lpg is directly injected into your vehicle and that it is driven by an ecu. The amounts of lpg injected is precise unlike the mixer system. Also the timing of the opening of the injectors are calibrated to the timing of your petrol injectors. Also the opening size of the injectors are suited to the needs of the engine. Unlike an emulator system, the sgi system also can be calibrated to suit the drivers need for power on higher rpm's


    Hope this clears everything. Have a nice day
    Last edited by ghosthunter; July 3rd, 2008 at 05:38 PM.

Auto-LPG Conversion Thread