atmospheric pressure variances. This procedure takes just a few moments
and it will ensure the most accurate readings throughout the oxygen sensor’s
life. This procedure is required anytime a NEW oxygen sensor is
installed.
The calibration procedure requires that the oxygen sensor be in free air, this
means removed from the exhaust system completely.
1. With the se
nsor disconnected, apply power to the LC-2. When po
wer
is appli
ed, the status light will light up green for 2 seconds whil
e the
controlle
r initializes. The status light will then turn red
and flash a two
blink
sequence indicating an Error 2 condition. This error
state
indicates that
no sensor is detected. Leave unit power
ed on for a
minimum of 3
0 seconds while it is flashing the Erro
r 2.
2.
Powe
r down the LC-2 and attach the oxygen sensor to the sensor
cable and the sensor cable to the LC-2. When making
these
con
nections, make sure they are fully seated an
d locked. Again,
make
sure that the sensor is in free air (not in the exhaust).
3. Power up the LC-2. The st
atus light will
light up green for 2 seconds
while the
system initializes. The status
light will then start flashing
gree
n twice a second indicating that the sensor is heat
ing up to it’s
operating tem
perature. After 30-60 seconds, the status
light will flash
gree
n for a series of very quick flashes indicating the sens
or
calibration i
s being performed. Lastly, the light will light up soli
d
gree
n indicating that the unit is operational and re
ady to take read
O2 co
ntent in the exhaust
gas.
You may disconnect the sensor from the sensor cable in order to
thread the sensor into the exhaust. To do this without losing your
calibration, make sure the unit remains powered off while the sensor is
disconnected. If you power up the LC-2 without a sensor connected,
your calibration will be lost and require the calibration to be repeated.
(see step #1 above).
4.1 Calibration Schedule
Normally aspirated daily driver:
- Calibrate before installation of new sensor
- Calibrate new sensor again after 3 month of use
- Thereafter calibrate once a year or every 20,000 miles, whichever comes
first
Turbo car, daily driver (richer mixture):
- Calibrate before installation of new sensor
- Calibrate new sensor again after 3 month of use
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