308 QV Flywheel sensors

I have done a rebuild of the rear wiring harness on my 308QV, however I have misplaced the detail on which flywheel sensor is for which function, ie the 2 for TDC and 1 for RPM. Does anyone known which is which. Thanks

 

Thanks - I have this drawing. I should have worded my question as to which sensor on the bell housing provides which function. There are 2 on the right (front) side (upper/lower) and one on the rear (left) (center).

 

Many thanks - the purring sound of 8 cylinders again.
For reference in future the upper sensor is TDC 1-4 (rear), lower sensor is TDC 5-8 (front) and RPM/TACH is on the opposite side in center