aei wire missing.

[Lee B 2012]

I have the tdc and knock sensor connected but where is the 3rd plug go?

[Thundercat]

There should be three plugs attached to AEI units, the third one your missing is the supply plug. Should have three wires going to it for 12v, 0v and ignition pulse for speedo/fuel pump. Depending on model phase 1 comes through fire wall into engine bay via grommet and phase 2 is located near heater fan on other side of fire wall.

[Lee B 2012]

Cheers i have managed to sort that part out now :)