i have just brought a Au2 with a Vialle system in it, its lpg only no petrol ive herd that you can do a self tune is this right??If so how do i do it??The car has done heaps of kms 310kms but is still going very good,only fault i can find is that the auto sometimes takes its time going into rev but by the sound of it its a common fault.

The vialle system is factory ECU controlled ... there is literally no adjustment ... unless you get an EDIT.

The Stepper motor/ECU controls gas flow.

The auto sounds a little tired ... I suggest getting the auto serviced immediately. It needs fresh fluid at the correct level constantly to keep line pressure up for shifting gears cleanly. Also the filter inside the auto needs changing on the regular basis ... I'd be doing it every 20,000km just to be on the safe side ... otherwise you are looking at $1500 to $2000 for a rebuilt/new auto.