Pin D6 on the ECU
Or... it could be A4, I forget...
Wanna make it easy on yourself?
Splice open, but don't cut your VTS wire at the ECU,
Go ahead and CUT your VTM wire(VTEC oil pressure switch) FROM THE ECU splice it to the open VTS(VTEC solenoid)...
This will defeat your VTEC oil pressure switch and eliminating what I would imagine is a worthless part.
Again, you're going to connect the wire from the ECU that is your VTEC oil pressure switch to the vtec solenoid.