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Old 11-11-2013, 04:51 PM   #1
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Default G2 guage not responding after LC1 install

I'm not getting anything from my Innovate G2 gauge- no back light, no needle movement. The LC1 seems to be alive. The LED lights up and I'm pretty sure I did the free air cal. right. It was weird though because the LED didn't light up until I pushed and held the provided momentary button. Then I let off on the button and it went off. Basically it seems like the momentary button is doing the opposite of what it should. It should break the connection to ground, right? Well on that assumption I wired the black cal. wire to the red LED wire and the black LED wire to ground. Turned the key, light blinked for 20 sec. or so then went solid. Pulled the black LED wire from ground for 30 sec. and then plugged it back in. LED stayed lit. Put the O2 sensor in the exhaust and started the car. Nothing. Turned off the car. Turned on the headlights. No back light.

Now I'm at a loss as to what to do. The blue 12v switched wire from the gauge is spliced into the radio 12v. The LC1 is also spliced in at the same point. The LC1 and radio are definitely getting power so I'm not sure why the gauge isn't. Same thing with the white wire that is supposed to go to a 12v source when the lights come on. Its spliced into the wire for the little light in the cup holder. My boost gauge runs off the same wire and it comes on with the running lights, but the AFR gauge doesn't.
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Old 11-11-2013, 04:53 PM   #2
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Also, I checked the connection to the LC1 (green gauge wire to brown LC1) and its solid. And the brown gauge wire that just centers the needle after the car is off, I just put electrical tape on the end.
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Old 11-13-2013, 10:37 AM   #3
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The momentary button grounds the calibration wire; it doesn't break the connection.

If you have confirmed there's 12 volt power at the gauge plug, I'd give Innovate a call. It sounds like you may have a dead gauge.
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Old 11-13-2013, 12:30 PM   #4
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Yeah I called innovate yesterday and I think the gauge is dead, but I'm going to get a volt meter to be sure. And the momentary button definitely grounds the calibration wire when its pushed, instead of braking ground when pushed. I also got a new laptop and I'm having a hell of a time just getting anything with a serial port to talk to it, but that's another thread.
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