NEVER assume a replacement coil will terminate the wires to the same lugs.
Inspect both coils and determine which wire is which. Are there diodes? If so, which way are they facing?
Most (if not all) WMS coils I have seen have one of the outside lugs as the 50V "hot" connection. Connecting the supply voltage to the middle lug doesn't sound right to me.
Be very careful fiddling with this as you can cause a LOT of damage to the driver board by incorrectly connecting coils.