I have looked at the wiring diagram for my car EU2 /2001 onwards and am still confused how to connect the ford sensor. We have established that the for sensor has 3 wires Yellow/brown-pickup, Brown -VE and Brown/black +VE . The Caterham diagram does not indicate what the two wires are Red/blue and Light green, it just shows them going into a block drawn in the speedo. I presume that the brown could be grounded as its -VE and if the circuit is energized there should be a +VE and that should be the Brown/Black leaving the brown yellow to be connected to the light green. Can anyone please confirm this? Thanks Rob