M70 Crank/Cam Position Help!

[masbury]

1991 850i CB73309

Can someone verify which wires feed the crank and cam position sensor plugs.

Note:right and left is from inside car facing forward.

My car has 4 wires coming out of the plastic box under the engine cover that are for these sensors.

The top left wire has a black socket that (I belive) goes to the crank sensor and the lower left wire has a tan connector on it.
Do those go to the crank/cam position sensors on the left side of the engine?
Do the two wires that sit on the right side of that box go to the right sensors?

I'm asking because there seems to other things that cross sides and I would really like to get this car running again.

Thank you

[JDP530]

I installed new crank and cam sensors in my '91 recently. Let me double-check. The right bank, 1-6 CIS (cam) goes to bottom plug receptacle on passenger side. The receptacle on top is for the top crank sensor. The top receptacle on driver's side is for the 7-12 CIS and receptacle below it is for the lower crank sensor.

IMG_20171221_125736877_HDR.jpg

[masbury]

Just to be sure also, the tan connectors are for the donuts, correct?

[pollack138]

Just to be sure also, the tan connectors are for the donuts, correct?

I don't think so. The tan engine harness connectors are on the bottom and as JDP530 states only the passenger side tan connector is for a donut (1-6). The 7-12 donut connects to the drivers side, upper, black connector. Definitely not intuitive, probably why so many people get this wrong.

[masbury]

There is a top end rebuild (M70) document floating around where the author says the tan connectors are for the donuts. Weird that BMW switched colors in mid stream so to speak.

Thanks for the correction.