Can someone please tell me where this lonely green wire I found disconnected on the 380sel I bought last week that won't start. It looks like it has a new coil. It wasn't running when I bought it and previous owners were throwing parts at it. I'm thinking they forgot to hook this up when they put the new coil in. I'm not sure where to connect it or if even to connect it to the coil. The coil has a positive and negative post and I would guess it goes on the neg post, but I don't want to burn something up. Does anyone have a diagram? I'm in desperate need to get this started! It did start for a second the first time I looked at it before the purchase. As soon as I barely touched the gas petal it died and haven't got it started yet!!!
Here's a pic below and I forgot to mention the car is a euro spec and has a "k-loop"

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