User Manual
Tinted Series Narrowband Air/Fuel Ratio Gauge
For Product Numbers: GS-T02
Wire Harness Color Code
Red:
12v Ignition Source (+) (
switched
)
Orange:
12v Switched Headlamp Source (+) (
optional
)
Black:
Vehicle Ground ( - )
Green:
Connects to Vehicle 0v-1v Narrowband O2 Sensor Signal Wire
1. Disconnect the vehicle's negative battery cable.
Gauge Installation
2. Air / Fuel Ratio: Connect the green wire to the vehicle
oxygen sensor signal wire, before the catalytic convertor.
You may connect this wire directly to the ECU harness or
splice into the signal wire leaving the sensor. This wire color
can vary, be sure to consult your vehicle’s owner’s manual.
(0v ~ 1v Output - NARROW BAND ONLY)
Note: If your vehicle does not have a narrowband o2 sensor,
you will have to purchase a single wire or 4 wire narrowband
o2 sensor to complete this installation.
Connecting the Power Wire Harness
3. To make the wiring of your gauges easier you can
purchase an expandable circuit. This component easily fits
into your fuse panel and provides an additional fused power
wire for accessories such as gauges. The expandable circuit is
available for purchase at www.GlowShift.com.
4. Using automotive grade wiring (18 gauge); connect the
red wire to a positive 12 volt ignition (switched) source. It
may be connected to the fuse panel, an accessory wire, or any
positive 12 volt source that turns on and off with the ignition.
5. Using automotive grade wiring (18 gauge); connect the
black wire to any good (unpainted) ground connection. You
may also route a wire directly to the negative side of the
vehicle’s battery.
6. The Night Time Dimming feature decreases the brightness
of the gauge face by 30%. Connect the orange wire to the 12
volt positive headlamp source. This allows the mode to be
activated when the headlights come on. This step is optional
and will not affect operation of the gauge if it is omitted.
Note: Do not connect the orange wire to a dimmer
wheel. This will cause the gauge lighting to flicker.
7. Reconnect the vehicle's negative battery cable.
Power on the vehicle to ensure the gauge is
functioning properly.