Air/Fuel Installation

Air/Fuel Gauge

1.Connect red wire from gauge to a switched 12v source (12v switched power source means that there are 12v to the red wire when the ignition switch is on and no voltage when the ignition switch is off)

2.Connect black wire from gauge to a good engine block ground

3.Connect purple wire from gauge to the night time dimming circuit. (The purple wire must be connected to the headlight switch circuit so that there are 12v to the purple wire when the headlight switch is on and no voltage when the headlight switch is off)

4.Connect orange wire from gauge to signal wire on factory oxygen sending unit

NOTE: If vehicle does not have factory oxygen sending unit order Cyberdyne part # 8941