Finally got round to swapping the camshaft sensor. No codes any more and running very well 
The thermostat sensor does supply a signal to the ECU just been reading up and so does the sensor for the temp gauge. See my thread on M54 engine running probably and @t-tony got OEM quality sensor.
Good luck sorting
rThe thermostat sensor does supply a signal to the ECU just been reading up and so does the sensor for the temp gauge. See my thread on M54 engine running probably and @t-tony got OEM quality sensor.
Good luck sorting
you will have to forgive me just found threadwell called bmw redhill and leamington spa and both sensors were £216.00
got both ordered here for 200 euros so saved about 53 euros ,how do i find the thread and does this look like the eco is on its way out ;thanks for the update
If you haven't done so already I would check air intake hoses for signs of cracking. Could be drawing in unmetered air. Stick your head under the bonnet and have a listen for whistling noises around the intake / throttle body. Not sure if yours will have one but I found a blanking tube on the throttle body that was split. Made idling a lot smoother when repaired.Afternoon! Well even though I've changed the sensor out and it's running better than it was, it still seems to be running rough. I notice it more when I'm sat at the lights waiting to move off, it seems to be spluttering and gurgling away. I've read the codes and there's none available to me, plugs look good, any other ideas? Cheers