[R33 ECR33 Skyline Coil Harness Question]

I am having ignition problems and ordered a coil pack harness. When the new OEM Nissan harness on the right it was a three wire connector. The orginal on the left is only a two wire and different connector. Any Ideas of what the correct part number is ? Thank you. 

[Newb from Texas]

I'm Justin and I recently imported an R33 and have been trying to teach myself how to work on JDM vehicles. Wish me luck!  Any tips would be appreciated.