O2 Sensor Wiring Key
Our wideband wire loom consisted of six wires with an additional two terminal jacks. The two terminal jacks will be plugged into the back of the GTech tach later on.

RPM Signal Wiring Key
Our rpm signal wiring consisted of five more wires. However, only four are used and the opposite end has a USB style connector which will connect to the back of the GTech tach.

Black (thin) Must be grounded Red For 12V power source
Black Must be grounded Green For tach signal
Orange Only used for demo versions, so it must be grounded in normal operations