1994 E36 318i M43 engine. Vacuum control box???
I have a problem with rough idle and am gonna do the usual icv work and the crankcase pressure control valve ( breather hose to it failed last week ) but have a question regarding something else under the inlet manifold which is found on diagrams etc.
Q) I was wondering what the [COLOR=blue ! important][COLOR=blue ! important]vacuum[/COLOR][/COLOR] control box is ? This is listed on the realoem.com site under their diagrams (which are v.good) and i was wondering what it is and do i need to order one along with my other service parts (c/case pressure cont.valve) ?
realOEM list as follows:-
The part is item 6 and the part # is 11611734472. Does anybody know what this part is and whether i need to order it?
The problem part i suspect is the culprit ( as it seems to loose vacuum when engine is completely hot ) is the crankcase pressure control valve is shown on the following link and is item 1 in the diagram ( part # 11157501567 )
Anymore feedback would be greatly appreciated.