I was looking at the Bentley yesterday checking for info on the relay and according to them the MS45.1 ECU doesn't use a fuel pump relay. They say the fuel pump module handles that function. But they also said the MS45.1 was only used in (IIRC) the 2002-03 325i and 325Xi.
I thought the MS45.1 was the ECU that was used in the ZHP. Anyone know for sure if the ZHP has a relay?