HHR Panel Man

iTrader: (2)

Need to find some wires for Wideband Gauge

OK so electrical is Not one of my passions. Actually, I HATE it!

I want to hook up my GlowShift Wideband Gauge.

There is a little Brain Box that mounts under the dash and the wiring plugs into it.



Link to PDF Installation Instructions. Scroll down the page please to pdf link.

Black 7 Series Digital Wideband Air Fuel Gauge

OK Basically I have the Power Wire Harness to hook up into my '08 2.4 HHR's electrical system.

The Power wiring harness is

Black=Ground = Easy to do.

White=12v Ignition (Switched) Source (+)

Red=12v Constant (un-switched)Source (+)

Orange=12v Head Lamp (switched) Source (+), This controls the dimmer function to dim the gauge brightness by 30%.

1. Disconnect the negative battery cable.

2. Mount the controller inside the vehicle away from heat, water, moisture, dirt and all moving parts, in an easily accessible location. This allows for the unit to be accessible should calibration need to be performed.

3. Connect the red wire to a positive 12 volt constant (un-switched) source either directly to the battery or to a fuse panel on the vehicle. If wiring to an un-fused source, install a 3 amp fuse inline within 20 inches of the sources connection.
• You may obtain an optional "add a circuit" accessory. This component easily fits into your fuse panel and provides an additional fused power wire for accessories such as gauges. This is available at GlowShift Performance Gauges & Pods as well as your local auto parts store.

4. The white wire should be connected 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. 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 orange wire should be connected to a positive 12 volt switched source (head lamp). This controls the dimmer function to dim the gauge brightness by 30%. This step is optional.

7. Install the provided LSU 4.9 Sensor by welding the matching exhaust bung to the exhaust pipe.


• Make sure the location of the bung is no less than a minimum of 18 inches after the exhaust ports.

• If you have a turbo charger, the bung must be installed

no less than a minimum of 36 inches after the exhaust ports, but before the catalytic converter. This also applies if you use unleaded race fuel.


• The bung must be positioned in such a way that the sensor is at a minimum of 10 degrees from a horizontal position with the electrical connection up to prevent a collection of liquid at the element during the warm up phase. SEE DIAGRAM ABOVE.

8. Next, route and secure the sensor wire harness from the sensor into the vehicle, close to the controller’s location. Be sure to use a grommet when routing the wires through the firewall to protect them from stripping.

9. Reconnect the negative battery cable.
• Be sure all of your wiring is correct for proper gauge operation

Any electrical guru's want to help out, I really try Avoiding this electrical stuff at all costs. Should have learned long ago but just always avoided doing it whenever possible.

Sounds like I gotta hit certain wires for certain things.

The orange wire is supposed to Dim the actual Gauge when your headlights are on so it's not so brite at night. But with daylight running lights I havent a clue what wire I should try tapping into. Plus the other 2 needed.

I asked someone here on the cobaltSS forum who had a glowshift wideband and he responded with-

"wire the white to the wiper fuse in your fuse box inside the car.
wire red to a constant power source like a battery post
orange needs to be wired into the wire that goes to the dimmer on your car."

But he had no idea about an HHR, thats how he did his in the Cobalt he had,

But hooking the Orange(optional) wire into the dash dimmer the gauge would only Dim 30% when you manually dim your dash lights.

Not exactly as it should be, which is dim automatically when the headlights are on at night.

Anyone have some ideas???



Thanks in advance.