www.86garage.com

Anyone have any input on this? I can't seem to find any information on how to wire it correctly.

wow the LC-2 is much easier than the LC-1 I had! Red is 12V switched, Black is Ground, Yellow is wideband (dataloggers, AFR gauge, etc) , and brown is narrowband (to emulate the factory Oxygen Sensor). For a diagram for the "relay" for the power they refer to click the link, and see section 2.2.1

Here's the instructions via Innovate in case yours didn't come with it. here's a link as well. http://www.innovatemotorsports.com/supp ... Manual.pdf

2.2 Wiring
The LC-2 has 4 stripped wires.

1 Connect the RED wire to a switched 12V source in your vehicle. A
switched 12V source goes ON as soon as “key on” power is active.
The circuit to which you will pull power from should be able to support
an additional 3 amp draw. Make sure the connection is fused with a
minimum fuse size of 5A.

**NOTE** Circuits that share power with the vehicle’s stereo, ignition system,
ECU, and fuel pump should not be used. When in doubt, create an additional
circuit using an automotive relay available at most any automotive parts
supplier. See the in the next section for a relay installation diagram.

2 The BLACK wire should be grounded to a solid ground source. The
best possible ground source would be the battery ground (-) post.

**NOTE** If other Innovate Motorsports devices are going to be daisy-chained
along with the LC-2, it is recommended that all devices be connected to a
single ground point, ideally the battery ground (-) post.

3 Optionally, the YELLOW (Analog out 1) and/or BROWN (Analog out 2)
can be connected to the analog inputs of other devices such as data
loggers, aftermarket programmable ECUs, or AFR display gauges. If
either one or both of these wires are not being used, isolate and tape
the wire(s) in an out of the way location. Each of the two analog output
wires can connect to one device that can accept this 0-5v potential
output.

The default analog outputs are as follows: Analog output one (yellow 0-5v) is
0V = 7.35 AFR and 5V = 22.39 AFR. Analog output two (brown 1.1-0.1v) is 1.1V
= 14 AFR and .1V = 15 AFR. Note: The LC-2’s ground should share the
same grounding source as the device to which you are feeding the
analog outputs, the easiest wait to accomplish this is to run an aux
ground wire from the ground point of the LC-2 to the ground or signal
ground of the device you are interfacing with.

Ok, I get the ground and 12v power source but where do I wire the signal wires in at? I don't have a gauge yet but was going to wire it straight to the Megasquirt, do I just run the appropriate wire to the existing narrow band wires?

you'll remove your narrowband o2 and put in the wideband o2. Then connect the yellow wire to the correct pin on your megasquirt. which if I remember correctly might be PIN 10.. but don't hold me to that as I don't have MS. Then just don't connect the brown wire.

Yeah it looks like I can hook up either signal wire to the existing narrowband wiring and just tell the MS which signal I'm sending it.

I would use the wideband for the MS You will have a more accurate tune. I have my PLX narrowband connected to my stock ECU and the wideband connected to the Haltech. always use wideband on stand alone it reads between 0-5v where as the narrowband only reads 0-1v.