i guess your 328 is different from my 325, b/c in the 325 there were clips or screws(cant remember) that were very visible and obvious.. i remember it was really easy take it out, just dont remember how
you do know that the ECU is , if you are facing the car standing infront of it, on the left side all the way back there is a black cover and the ECU is behind there, right?
btw, tell me how hard the timing is, please, and do you or do you not have the tool for the camshaft removal?