i have 3 1.8 cvh sierra. im trying to wire the rave limiter. there is a yellow and green wire, a red and green wire and a black wire coming from the coil pack. there is a black white and red on the rave limiter. the instructions are "Connect as follows black wire to earth red wire to coil +Terminal white wire to coil _ terminal. any idea what is the terminal + and Terminal_ is coming from the coil pack??