hello I was wondering if anybody can help me with my galaxy keeps going into limp mode I have changed the maf sensor serviced the car changed the brake light switch cleaned the egr checked the pipes but still kept happening so brought a vagicom vs450 kept getting error code p1557 so changed the map sensor cleared the codes went for a spin soon went into limp mode stopped put it on the computer came up with a new code17563 p1155 manifold pressure sensor [g71] short to b+ now at a loss anybody got any ideaers lol help would be very gratefully received thanks