Autometer C2 Air Fuel Ratio Connections

[Transamman25]

white
black
red
purple
Hmm my o2 sensors are bosch so white black and 2 grays what goes where :eureka:

[CamTom12]

hang on, lemme get my diagram out....


White = 12v dash lighting
Red = 5A fused ignition accessory power
Black = Ground
Purple = O2 signal wire. connect to vehicle harness and not to sensor itself (some sensors use shielded wire)