You said you had spark but it would not start.

What color was the spark?

The coil can break down and put out a weak yellow or reddish spark. It should be blue white. The weak spark will NOT start the car, even though you see a spark when you look for one.

It the coil is going bad, you may have jostled it enough to get it working when you were pulling on the green wire.

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2012 E350
2006 Callaway SC560