Engine electrics 350i

[jack350]

Not sure if I have uploaded the image correctly

Where the loom comes through the bulkhead (passenger side) there are two wires break away from it with eyelet connectors on the end. One wire is black (which I assume is an earth) the other black with white. The image if uploaded shows these but there is nothing to say where they attach and what is their function is.

Any ideas ?

[Markymark21]

My guess is both are earths. The ECU earth points are on the rear of the near side cylinder head from memory.
There’ll be others on here that should be able to confirm.

[jack350]

Thanks Mark

[KKson]

Yes, I agree. Recently had the 390SE apart for new manifold gaskets and there were three wires bolted to the rear NS earthing bolt, 2 black ones and one white one.