hi im installing a new tri-pod with air/fuel, vacuum and boost gauge, i found the oxygen sensor, but cant determie which is the signal cable to attache the wire for the gauge, theres a black wire, two white wires and a grey wire, by the way is an 03 chevy cavaliers ls sport. 2.2L ecotec can someone tel me which wire is it to install the gauge thanks.
why a boost gauge.. and try www.j-body.org its the cavi site