Hey Dk,

This is probably self explanatory but I'm going to be installing a wideband/air fuel meter in the car tomorrow. I have a NTK/NGK O2 sensor (Blue, White and Black (x2) wiring) off the sensor itself. My air fuel gauge isn't anything fancy - it has three wires (12v, ground and signal) - Autometer - and I'm using it just for monitoring the car since I'm working out some over-fuelling research.

My question is, where do I get the signal for the air/fuel gauge - I know it's off the O2 sensor (from what I've been reading - the AE has the heating style sensor) however I'm not sure which wire to splice into. I don't think it makes a difference - it's a BT20V running stock BT ECU.