help needed sharpish pretty please :)

[Niall]

If i'm reading that correctly, speedo feeds the ecu and clocks independently.

If VSS was faulty or not plugged in neither the ECU nor the clocks would know. for the tacho the clocks seem to get their reading via the ECU, which presumably interprets the intermittent signal.

Hence the previous question about if the mileage and other instruments work.

Tacho is taken from the CPS to ecu and goes on from there in form of a varying voltage. Speedo works much the same.
For the tacho not to work, it must be a issue with either the ecu or wiring from the ecu to dials. If the ecu wasnt receiving data from the cps, it would throw a shit fit and probably not start