Hi i have a little black sensor next to coil 1 wire goes to coil with another wire going off to 2 green wires,the other black wire from sensor next to coil is not connect,could some one advise me where it should be.
thanks dave

 

Ex Auto sparks [ now retired ] yes this is a M/frad condensor forget its value...not important as you have it. The live 12v from the loom goes to 1 wire of the unit...the other black wire goes to Coil live+, you may well have another wire on the coil +, this should be the branch off 12v for the Amplifier....ive a 3Door...cant remember Sapphire 4x4. The unit is earthed through its end bracket.
OAP Pete.

 

As said just a noise suppressor, to stop radio interference.
A typical value is 1uF, Microfarad.
tabetha