Hi, I have vectra-c 2.2 SRI 2002 model which has been continuosly giving me problems since last 1yr. Main problem is car wouldn't start intermittantly, the joint symptoms are steering signal / spanner signal flashes, doesn't show fuel consumption on the screen, battery signal flashes, steering becomes really hard when these happen and releases it self. no relation with temperature, got battery checked, spent over £700 on changing ECU unit with no luck. vauxhall service electriction says some dust in some adaptor which causes this problem but that doesn't resolve the problem. Can anyone advice what could be the problem.