on the rb30 distributor there is a plug that plugs into the distributor and it has 4 pins . does anyone have a diagram or the know which pins are which. i need to remove on so i can run my megasquirt ecu. im guessing 1 is earth and 1 is power. the other 2 is the inside and outside things (whatever you call them lol ) for the trigger wheel. need to disconnect the inner one. if this makes sense haha. any help would be muchly appreciated, thanks