I’ve definately got the sucker grounded. It lights up and everything but absolutely no needle movement from the air/fuel gauge…Maybe it’s fried?? I have no idea. My boost gauge works well.
I have 4 wires coming from the gauge:
- RED: 12V ignition power (I have it wired to the driver side door so the gauge lights up only when the door is closed)
- BLACK: Ground (Connected to chassis)
- GREY: Signal (Attached to the white signal wire, the 02 sensor has three wires coming directly from it (white, black, white) it then hits a clip and turns into three different coloured wires (black, white, black). I have it connected to the middle center wire (white) past the clip)
- PURPLE: it says to connect this wire to the headlights to activate but due to my door switch ingenuity this wire is not needed.
Have I done something wrong???