Seem to be hungarian, that is the name of the regulator fitted to the rangie I have just bought.
Want to check the co reading and after changing the plugs and leads, see if I can get it to idle as well as it drives on LPG.
I think the switch over fuel pump solenoid might be knacked though as there are two manual toggle switches that have to be used to turn off the pumps after switching over to gas, and back on before switching to petrol.