Nissan Repair: Pathfinder/Terrano Ecu, engine loom, sequential injection

Question
How do you turn off the injectors in a VG30E powered Pathfinder. Can you remove the earth supply from pins 107 and 108?. Does this affect anything else in the ecu? I wish to run the engine on LPG as well as petrol. The power to the injectors (white/red trace) appears to be connected to the coil supply (black/white trace) but in several locations in the engine loom, making it difficult to isolate. Its a 91 Australian pathfinder with a 96 ish Japanese Terrano engine/box/loom/ecu. It appears to have sequential injection  

Answer
Harry,

You could simly unplug the injectors or disconnect the cam position sensor to keep them from firing.  I have not done a conversion on a fuel injected engine so it will be interesting fooling the computer.  I bet unplugging the injectors is the easiest way along wiht removal of the fuel pump fuse.