Engine Management Sensors Wiring

[Mick Barter]

Hi . . I'm currently part way through changing an engine in a 1995 M 318i SE .. .the donor engine is from a 1998 car that had a rear shunt . . i'm all but finished apart from finding a home for one of the 2 pin push on plugs with a blue rubber gasket inside from the centeral wiring harness .
I have looked on autodata at engine management component locations but it always seems to show a twin cam engine in the picture and the same happens when my local garage looks it up aswell ..
Was just hoping someone here might have some information which could help me find a home for the last plug!! . .
Any help would be greatly appreciated. .
Cheers