I am not sure I know which wire you are talking about. The fuel injection wire that goes to the coil is not on this wiring diagram.
So I am attaching the entire diagram below for your review.
Also, here are a couple guides that will help with testing the voltage if needed:
Please see the wiring diagram below and let me know the details about what you are trying to find and I can be of more assistance if needed.
Images (Click to enlarge)
Friday, September 17th, 2021 AT 9:03 PM