Thanks Tony,

This car has been in another garage and already had the loom stripped back on the n/s engine bay from the coils, temp sensor etc. the 12v feed to the actuators is present but no 5v reference to the sensors, any idea what wire usually breaks that could cause these symptom's? The wiring diagrams don't seem to be the same as this car, pin 4 on the "engine control diagram" is not wired at all, but I found at least 4 12v feeds at the ECU and a couple of ground connections I suspect the ECU and may send it off for testing.

Many thanks