NANO PRO
10
6. Wide Band O2 Sensor
Better known as the oxygen sensor, it is responsible for reading
the exhaust air/fuel ratio. This sensor is essential for engine
ne tuning.
Part Number Bosch (Brazil): 0 258 007 057 or 0 258 007
351
VW: 021-906-262-B
6.2 BOSCH LSU 4.9 O2 Sensor
The Bosch LSU 4.9 O2 sensor works the same as the 4.2
6.3 BOSCH LSU 5.2 O2 Sensor
The O2 sensor Bosch LSU 5.2.
6.4 NTK O2 Sensor
This O2 sensor is used in engine laboratories, due to its extreme
accuracy and speed in reading in different AFRs.
This O2 sensor requires an free-air calibration.
Free-air calibration
The NTK O2 sensor needs an open air calibration, so after
con guring in the software it is necessary to connect the sensor
to the Nano PRO and carry out the calibration.
To perform this procedure, rst connect the O2 sensor to the
Nano PRO and leave it out of the exhaust. Turn the ignition on,
and let the NTK O2 sensor heat up for 5 minutes, then access
the sensor setup menu, select NTK, and click on the “calibrate”
button.
The calibration process is executed 5 times to guarantee the
expected result, after the test a message with the result will
appear on the screen. If an error message is displayed, it is
necessary to repeat the calibration procedure.
IMPORTANT
Bosch LSU oxygen sensors are not designed to
run on fuel that contains lead, and their lifespan
is drastically reduced to around 50 to 500 hours.
Part Number Bosch (Brazil): 0 258 017 025
Part Number Bosch (Brazil): 1 928 404 719
Part Number FuelTech: 5005100011
6.1 BOSCH LSU 4.2 O2 Sensor
Bosch LSU 4.2 sensor has an encased heating element and it is
used to measure the air fuel ratio, which determines the lambda
value in the remaining exhaust gas. Its signal indications vary
from 5.14AFR Gas (0,35λ)lambda (rich mixture) to open air
lambda (in nite).
The connector includes a calibration resistor (factory calibrated),
which defines the characteristics of the sensor and it is
necessary for its operation. It is with this resistor that the WB-
O2 Nano automatically calibrates the sensor.
NOTE
Running the engine with the sensor installed to the
exhaust and not connected to the Nano PRO (or
other conditioner) may damage the sensor.
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