hey mate, so i asked my friend about the lpg etc,

he said that b4 your lpg was hooked up, (when it was still petrol) they should have asked u to drive the (2jz) engine as hard as possible, in each gear, that way the lpg installer can then duplicated the fuel map readings of the engine from the petrol to the lpg. thus the fuel injection and duration etc will be identical.....

he also said u can use your std ecu hooked up with the lpg's.

hummm did this kinda help?

Thats quite um an interesting way to calculate the mixture...