This is a air/fuel gauge I purchase, but I don't have the intructions for it. I have a good idea how it goes. One wire to the O2, 1 power, 1 ground, etc. But the plastic looking sensor with tape on the back WHERE THE #$%$@ DO I PUT THAT? I know someone has to know. Its a MOOKEEH PERFORMANCE GAUGE. Like always Thank You in advance!!