Coil Negative

[philip]

There are 3 wires feeding the coil on the 172/cup, two equal diameter wires which are orange and white and a 3rd thicker wire which is white. Does anybody know which of these is the coil negative?

Thanks

Philip

 

[philip]

bing ? >>

 

[philip]

ok one last attempt - bump?

 

[BenR]

Do the 2 orange ones come from the ECU direct to eiter side of the coil, each operating 2 plugs.

And one to the fuel relay?