:) got my first land rover 2 wks ago 96 disco 3.9i es manual petrol/lpg:doh: let my mate mess with the lpg:doh: & yup he messed it up lol

hi fellas i just got my first disco but have a right headache with it & cant seem to find any info on the gas system (bedini lcs dgm 53335 gpl) first when i change over to gas from petrol or start it on gas when warm there seems to be a delay in the gas kicking in & the car almost cuts out but...