Open the coil/module and check the Color of the Wires !
The yellow/black wire connects to the other terminal on the coil pack that serves cylinders #1 & 4.
The green/black wire connects to the other terminal on the coil pack that serves cylinders # 2 & 5.
The blue/black wire connects to the other terminal on the coil pack that serves cylinders #3 & 6.
