2 Mounting and Wiring the LC-2
2.1 Mounting
The LC-2 controller body should be mounted inside the cabin or in another
dry, protected location away from the elements. Physically mount the unit
away from all ignition or stereo components and other potentially RF or EMI
emitting sources.
Route the sensor cable in a manner that avoids contact with the exhaust
piping and other extreme heat sources that could melt the cable. Also avoid
routing the sensor cable near ignition components or other sources of RF
(radio frequency) and EMI (Electromagnetic interference).
2.2 Wiring
The LC-2 has 4 stripped wires.
1. C
onnect the RED wire to an isolated switched 12V source in your
vehicle. A switched 12V source goes ON as soon as “key on” po
wer
is active. The circuit to whi
ch you will pull power from should be able
to support a 3 amp draw. Make sure this connection is protected with
a 5A fuse.
Circuits that share power with the vehicle’s stereo, ignition system,
ECU, lighting, or fuel pump should not be used. When in doubt, create an
additional circuit using an automotive relay available at any automotive parts
supplier. See the next section for a relay installation diagram.
2. The BL
ACK wire should be grounded to a solid ground source. Th
e
best po
ssible ground source would be the battery ground (-) po
st.
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) ca
n be connected to the analog inputs of other devices such as
data loggers, aftermarket programmable ECUs, or
AFR display
gaug
es. If either one or both of these wires are not being us
ed,
isolate a
nd tape the wire(s) in an out of the way locati
on. Each of
the two anal
og output wires can conne
ct to one device that can
accept this 0
-5v potential ou
tput.
The default a
nalog outputs are as follows: Analog output one (yellow) is 0V =
7.35 AFR and 5V = 22.39 AFR. Analog output two (brown) is 1.1V = 14 AFR
and .1V = 15 AFR. Note: The LC-2’s ground should share the same
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