Car stalling when turning and braking (Holden VX Commodore Lumina)

Hi guys.

I am having a weird issue with my Holden VX Commodore Lumina, which is a gas converted car.
When I am going left round a corner and I am braking hard, the revs go really low and the car wants to stall (on a couple of occasions, it has). This happens more so when I am using gas. Could that be because the gas isn't giving the car as much power?

When the car stalls, it comes up with the battery symbol on my dash and my power steering and brakes lose power. The weird part about it, is that it doesn't happen when I am going right or straight and braking. Could it be an issue with the power steering electronics, do you think?

Thanks guys!

does the car have a electric power steering motor

does the car have a electric power steering motor

Yes. Could it be a fault with that?
I have to be honest, I am not very cluey with engines :runaround:

check for loose or chafed wiring to the gas system

It will be the LPG mixer, get a certified LPG mechanic to have a look at it. I would say that there is a blockage in the mixer :)

They have hydraulic power steering pumps as well :)