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LC-1 wiring help..

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Old 09-23-2006, 10:54 AM
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Question LC-1 wiring help..

I am going to run a WB in the pass side stock location using it for a NB as well....

I need to know what the 4 wires that come from the stock harness do.

pin A is Tan = heated o2 low

pin B is Purple = heated o2 high

pin c is Black = ground.

pin d is Brown = switched 12v.

The brown goes to LC-1 red

The Black goes to LC-1 Blue.

The purple goes to LC-1 yellow

The tan goes to LC-1 green.

Car is a '98 vette....

I am not sure how to wire the LED..Which is ground red or black??
Does it need a seperate ground or can I use the white chassis ground?
does the switch/light go in the cabin?
The brown wire is the only wire I need to connect to my interface?

Last edited by molson; 09-23-2006 at 01:18 PM.
Old 09-23-2006, 07:09 PM
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Originally Posted by molson
I am going to run a WB in the pass side stock location using it for a NB as well....

I need to know what the 4 wires that come from the stock harness do.

pin A is Tan = heated o2 low

pin B is Purple = heated o2 high

pin c is Black = ground.

pin d is Brown = switched 12v.

The brown goes to LC-1 red

The Black goes to LC-1 Blue.

The purple goes to LC-1 yellow

The tan goes to LC-1 green.

Car is a '98 vette....

I am not sure how to wire the LED..Which is ground red or black??
Does it need a seperate ground or can I use the white chassis ground?
does the switch/light go in the cabin?
The brown wire is the only wire I need to connect to my interface?
I cant help you with your factory harness, but on the LED that comes with the LC-1, the black is ground (that goes to your chasis ground), and the red hooks to the black wire from the LC-1 harness. Its used to make sure the setup completes without problems (watch it blink and then turn solid red when setup is done). Yellow and brown from the LC-1 are analog outs and will go to your tuning interface and/or your AFR gauge. Hope that helps.
Old 09-24-2006, 05:07 PM
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Thanks....




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