How to Connect a VTEC
- 1). Connect the red solenoid wire to plug "A8" on ECU "A."
- 2). Connect the yellow solenoid wire to plug "A17" on ECU "A."
- 3). Connect the red pressure switch wire to plug "B5" on ECU "B."
- 4). Connect the red knock sensor wire to plug "B19" on ECU "B."
- 5). Connect the red O2 sensor wire to plug "C8" on ECU "C."
- 6). Cap or tape any remaining wires.
Source...