FuelTech Nano PRO - Adapter Harnesses; Replacement of Bosch LSU Sensor Connector 4.2 for 4.9

NANO PRO
7
5.1 Adapter harnesses
The harness of the Nano PRO is the same as the WB-O2 NANO and is prepared for connection with a BOSCH LSU
4.2 sensor. To use other conditioners, it is necessary to purchase the specic harnesses for each one of them. It is
also possible to buy just the connector kits to replace the LSU 4.2 plug with another one.
Connector Nano PRO
(Pin) - (Wire color)
Function wire sensor
Connector Bosch LSU
4.2 (Pin)
Connector Bosch LSU
4.9 (Pin)
1 - Red IP 6 1
2 - Yellow Ground sensor signal 5 2
3 - Brown Positive sensor signal 1 6
7 - Orange Calibration resistor sensor 2 5
8 - Green Heat positive signal sensor 3 4
9 - Blue Heat ground signal sensor 4 3
5
26
31
4
Connector Bosch LSU 4.9
2
51
46
3
Connector Bosch LSU 4.2
IMPORTANT
The Nano PRO is factory congured to suit the Bosch LSU 4.2 sensor, if you want to
use another sensor, you need to change the conguration in the Nano PRO software.
This will prevent the sensor from being damaged or reading errors occurring.
5.2 Replacement of Bosch LSU sensor connector 4.2 for 4.9
This procedure is necessary if you want to use a Bosch LSU 4.9 sensor in a Bosch LSU 4.2 Sensor harness. Refer
to table below for sensor pinout:
Harness connector rear view