1": in the wiring between mpps and pump I see in the diagram 1 relay. But I see any abnormal, the two sides of the coil go to positive. Anybody know what happens? Pin 28 is ground and the colour of wire is incorrect? 2": in the software a don't see in the list Vectra c 2.2dti psg16 can but I see Meriva 2.2 dti psg16 can. I can use this ? Complex numbers and polar coordinates pdf