5
EN
WB-O
2
Nano
4. WB-O2 Meter Nano Electric Installation
The WB-02 Nano has a 12-way connector with 3 wire groups. One of them has
the connector for the O2 sensor, the second makes the CAN communication
with Power FT ECU’s and the third is responsible for power and analog output.
By default, the analog output is set to values of 8.7AFR to 16.2AFR Gas, but
can be configured to 5.14AFR to 17.6AFR Gas or 9.55 to 19.11AFR or 9.55
to 58.80AFR or yet 9.55 to 146.9AFR (Gas), if necessary.
See the following wiring diagram for details about connections.
12-way connector
Wire color
Pin
Connection
OBS
Red
1
O2 sensor
O2 sensor pin 6 - IP
Yellow
2
O2 sensor
O2 sensor pin 5 - sensor negative signal
Brown
3
O2 sensor
O2 sensor pin1 - Sensor positive signal
Red
4
Switched 12V The use of a 10A fuse is recommended
Yellow/Red
5
0-5V Analog
Output
Analog output proportional to the lambda readings. Used
for connection with data acquisition systems
White/Red
6
CAN
CAN (+): connected to Power FT ECU’s CAN port
Orange
7
O2 sensor
O2 sensor pin 2 - sensor resistor calibration
Green
8
O2 sensor
O2 sensor pin 3 - sensor heater positive
Blue
9
O2 sensor
O2 sensor pin 4 - Sensor heater negative signal
Black/White
10
Chassis/
Engine Power
Ground
Engine ground (head/block)
Do not connect it directly to the battery negative.
Black
11
Battery’s
Negative
Connected
directly
to the battery negative with no
splices.
Do not connected this wire to the chassis
engine block or head.
Yellow/Blue
12
CAN
CAN (-): connected to Power FT ECU’s CAN port
