A 1” bung (provided in the kit) will best protect the sensor. When fully
threaded, the sensor’
s tip will sit flush
with the exhaust pipe, this does
not adversely effec
t the readings
.
The bung should always be welded before the Catalytic Converte
r.
Weldi
ng the bung after the catalytic converter will skew the readings
toward lean. The skew in readings will vary with engine load a
nd the
efficien
cy of the catalytic converte
r.
Leaded fuel and two stroke applications will reduce the sensor’s life.
There are many other factors that dictate the sensor’s lifespa
n so it is
impossibl
e to predi
ct it’s total longevity.
Exhaust leaks, camshaft overlap, and open (shorty) exhausts will caus
e
false lea
n readings at light engine loads. Typically, once the engine
is
unde
r load and the exhaust gas volume increases, you will se
e accurate
readi
ng
s.
When installed in the exhaust, the oxygen sensor must be connect
ed to
a powere
d, functional LC-2 (no error codes) whenever the engine is
running. An un-powered sensor will be damaged in a short period of
time
whe
n exposed to exhaust
gas.
Do not pre-warm the sensor before starting the engine
, simply start the
engin
e as normal. Allowing the sensor to pre-warm before star
ting the
engin
e will increase the possibility of damaging the sensor from shock-
cooli
ng.
The maximum temperature of the sensor at the bun
g (the sensor
mounting lo
cation) should not exceed 500
o
C or 900
o
F. If these
temperature
s are exceeded in your application you should in
stall the
Innovate Motorspo
rts HBX-1 heat sink bung extender. (p/n 3729.
)
As th
e O2 sensor measures the oxygen content of the exhaust
gas to provide an accurate O2 reading, even a small pin-hole
leak in a poorly welded sensor bung will effect the accuracy
and performance of your O2 sensor. Remember, any deviation from
the instructions provided for proper sensor installation will lead to
inaccurate O2 readings.
4 Sensor Calibration
Once the LC-2 has been wired and a suitable location has been found for
both the controller and the sensor, it is time to perform the sensor calibration.
Innovate Motorsports’ ‘Direct Digital’ wideband measurement technology
allows you to calibrate the sensor to compensate for sensor wear and
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