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.

Why don't you look up the manufacturer's web site. I'm sure there's a support page there somewhere.

if it's not broke don't fix it very hard to get right need's to be done by pro

assumming au's vialle system is the same as el theres a black wire connected to a blue and white wire you hook the blue and white wire (NOT BLACK!) to battery positive start car up and hold 3000rpm for 10 mins i think the lpg switch flashes fast then it goes solid/slower/faster something and the rest is done itself i can find the rest out if you want?