lemongreenhatch

i have 97 gsr in 92 hatch i used soch vtec wiring harness the vtec wires were their but it didnt work i wired the vtec to the computer and the knock sensor but i hear u have to wire a second o2 sensor if so con some tell me where its at on the motor and what pin it goes to vtec doesnt work the way i have it if anyone as any other idea of what it is please help