VR Ute running rough on LPG

[luke_vr]

Hi,
This is my first post so sorry if im repeating anything that has already been answered that i havent managed to find.
Just purchased my first car (3.8l auto VR Ute, dual fuel). Running on petrol, everything is fine, idles smooth. On gas, it idles really rough and pulling up at the lights it feels like its going to stall, yet it doesnt. Checked my error codes and it said that i have a vacuum leak and my oxy sensor is running rich.
Could this have anything to do with it? Don't know too much about VR's so any advice or ways to fix the issue would be much appreciated.

Cheers.

[Patti2912]

Take it to a gas mechanic bro and get a general service, plugs, leads ect.
Mine played up a fair bit when i bought my duel fuel vr, used to back fire, run like shit and stall when stationary for more than 5 or so seconds, also blew up a couple of air boxes and gas mixers along the way but a good service and replacements of these things fixed it right up, now other than the slight loss of power i can barely tell a difference between running on petrol and gas.
In our kinds of cars it can be pretty common for the gas side of things to play up if they're not maintained properly.

[jr689]

Yea as stated above take it to a LPG installer/mechanic, you'd be surprised as to just how important a well maintained ignition system is to a gas system running good. My installer said that more often than not the bad rap that LPG gets given can be directly related to those small forgotten areas.