Holden Captiva: Limp mode

After a short drive in my 2008 Holden Captiva all engine lights come on and it goes into limp home mode.

I have taken it to a Holden dealership and $2000 dollars later it was cleared, only to reappear three weeks later.

To make matters worse all of a sudden when starting the car it seems the battery is flat until you pump the accelerator and then the car starts.

Any help would be appreciated.