camshaft position sensor

I have a Z3 with an M43 1.9 litre engine, which is returning an error code on the camshaft position sensor. Can anyone help me locate it? I have trawled the internet, and I cannot find any related image or video that resembles the layout of my engine. Thanks in advance for any assistance!

Just picked up a cheap 98 with 1.9 motor in it. It sit for awhile before I went and bought it. It is in really rough shape, but its a decent project car. The guy stated that somebody tried to steal it, but I don't think they did. There were no signs of forced entry, just the key had its...