FuelTech Nano PRO User manual

OWNER'S
MANUAL
NanoPRO - Capa Manual Online EN.pdf 1 09/03/2023 07:55:17

NANO PRO
2
1. Index
2. Presentation...................................................................................................................................................................................3
3. Warnings and Warranty Terms ..........................................................................................................................................................4
4. Characteristics................................................................................................................................................................................5
4.1 Package contents.....................................................................................................................................................................5
5. Nano PRO Electrical Installation.........................................................................................................................................................6
5.1 Adapter harnesses ....................................................................................................................................................................7
5.2 Replacement of Bosch LSU sensor connector 4.2 for 4.9..............................................................................................................7
5.2 Replacement of Bosch LSU sensor connector 4.2 for 5.2..............................................................................................................8
5.3 Replacement of Bosch LSU sensor connector 4.2 for NTK.............................................................................................................9
6. Wide Band O2 Sensor ..................................................................................................................................................................10
6.1 BOSCH LSU 4.2 O2 Sensor ....................................................................................................................................................10
6.2 BOSCH LSU 4.9 O2 Sensor ....................................................................................................................................................10
6.3 BOSCH LSU 5.2 O2 Sensor ....................................................................................................................................................10
6.4 NTK O2 Sensor......................................................................................................................................................................10
6.5 O2 Sensor Installation .............................................................................................................................................................11
7. CAN Communication.....................................................................................................................................................................11
8. Conguration through the Nano PRO Interface ..................................................................................................................................12
8.1 Dashboard conguration..........................................................................................................................................................12
8.2 Display conguration ...............................................................................................................................................................13
8.3 Heating setup.........................................................................................................................................................................13
8.4 O2 sensor conguration ..........................................................................................................................................................14
8.5 Manual .................................................................................................................................................................................14
8.6 Language..............................................................................................................................................................................14
8.7 About ...................................................................................................................................................................................15
9. Conguration via the FTManager Interface ........................................................................................................................................16
9.1 Datalogger Channels...............................................................................................................................................................17
9.2 Nano PRO Software Update .....................................................................................................................................................18
10. Lambda Readings analog outputs ...................................................................................................................................................19
10.1 Lambda Analog Output in Volts – 5.14 to 17.6AFR...................................................................................................................19
10.2 Lambda Analog Output in Volts – 8.7 to 16.2 AFR (default)........................................................................................................19
10.3 Lambda Analog Output in Volts – 9.6 to 19.1 AFR....................................................................................................................19
10.4 Lambda Analog Output in Volts – 9.6 to 58.8 AFR....................................................................................................................19
10.5 Lambda Analog Output in Volts – 9.6 to 146.9 AFR..................................................................................................................19
11. Analog output Lambda/AFR ...........................................................................................................................................................19
12. Nano PRO Codes .........................................................................................................................................................................20
12.1 Informative Codes.................................................................................................................................................................20
12.2 Error Codes .........................................................................................................................................................................20
13. Fixing template (in)........................................................................................................................................................................21

NANO PRO
3
2. Presentation
FuelTech Nano PRO is a tool used for monitoring and datalogging of air to fuel ratios on combustion engines. The
device is able to read and share with the ECU the following oxygen sensors: BOSCH LSU 4.2 / BOSCH LSU 4.9 /
BOSCH 5.2 and NTK wide-band sensor.
Besides it’s multiple types of O2 sensors compatibility, the Nano PRO is also a dashboard, allowing the con guration
of up to 5 screens to display information sent by the ECU (FTCAN 2.0), or work as button to activate various ECU
functions.
Monitor the engine’s air/fuel mixture and explore the complementary features, displaying complementary info or
saving inputs by activating buttons thought it’s screen.
The new Nano PRO is fully compatible with the WB-O2 NANO harness, sharing same connector and pinout.
When stand-alone, the display will only show the air/fuel mix information.
Bosch sensors are self-calibrating, while NTK sensors require an air free calibration, see the manual for information
about the procedure.
IMPORTANT
After the Bosch LSU sensor is installed make sure you select the correct sensor. This will
prevent sensor damage and reading errors.
There are differences between AFR (air fuel ratio) from the Bosch LSU Sensor 4.2 and 4.9, so it’s necessary to
correctly con gure the Bosch LSU Sensor type.

NANO PRO
4
3. Warnings and Warranty Terms
The use of this equipment implies the total accordance with the terms described in this manual and exempts the
manufacturer from any responsibility regarding to product misuse.
Read all the information in this manual before starting the product installation.
This product must be installed and programmed by specialized auto shops and/or personnel with experience
on engine preparation and tuning.
Before starting any Electrical installation, disconnect the battery.
The inobservance of any of the warnings or precautions described in this manual might cause engine damage and
lead to the invalidation of this product warranty. The improper adjustment of the product might cause engine damage.
This product does not have a certication for the use on aircrafts or any ying devices, as it has not been designed
for such use purpose.
In some countries where an annual inspection of vehicles is enforced, no modication in the original fuel injection
system is permitted. Be informed about local laws and regulations prior to the product installation.
Limited Warranty
All products manufactured by FUELTECH are warranted to be free from defects in material and workmanship for one
year following the date of original purchase. Warranty claim must be made by original owner with proof of purchase
from authorized reseller.
This warranty does not include sensors or other products that FUELTECH carries but did not manufacture. If a
product is found defective, such products will, at FUELTECH’s option, be replaced or repaired at cost to FUELTECH.
All products alleged by Purchaser to be defective must be returned to FUELTECH, postage prepaid, within one year
warranty period.
This limited warranty does not cover labor or other costs or expenses incidental to the repair and/or replacement
of products or parts.
This limited warranty does not apply to any product which has been subject to misuse, mishandling, misapplication,
neglect (including but not limited to improper maintenance), accident, improper installation, tampered seal,
modication (including but not limited to use of unauthorized parts or attachments), or adjustment or repair performed
by anyone other than FUELTECH.
The parties hereto expressly agree that the purchaser’s sole and exclusive remedy against FUELTECH shall be for
the repair or replacement of the defective product as provided in this limited warranty. This exclusive remedy shall
not be deemed to have failed of its essential purpose so long as FUELTECH is willing and able to repair or replace
defective goods.
FUELTECH reserves the right to request additional information such as, but not limited to, tune up and log les in
order to evaluate a claim.
Seal violation voids warranty and renders loss of access to upgrade releases.
Manual version 1.0 – March/2023

NANO PRO
5
1.83 in
1.48 in
2.64 in
4. Characteristics
• Water proof (IP67 Certied)
• 2” display with resistive touchscreen
• Lambda readings shown on the display (2.94 to 146.9 AFR Gas)
• CAN communication with Power FT ECU’s
• Analog output 0-5V
• Compatible with BOSCH 4.2 / 4.9 / 5.2 O2-sensors and NTK sensor
• Congurable operating range
Lambda (0.21 - 9.99)
AFR Methanol (1.35 - 64.6)
AFR Gasoline (3.09 - 146.9)
AFR Ethanol (1.89 - 89.9)
• Dimensions: 2.64” x 1.83” x 1.48” (in)
IMPORTANT
Installation MUST use the screws that come with the product. Out of specication screws
may damage the housing, causing loss of warranty.
4.1 Package contents
• Nano PRO module
• Instructions manual
• 4 screws for xation

NANO PRO
6
5. Nano PRO Electrical Installation
The Nano PRO 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 congured to 5.1AFR to 17.6AFR
Gas or 9.6AFR to 19.1AFR or 9.6AFR to 58.8AFR or yet 9.6AFR to 146AFR (Gas), if necessary.
See the following wiring diagram for details about connections.
12-way connector
Wire color Pin Connection OBS to Connections
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 connect
this wire to the chassis engine block or head.
Yellow/Blue 12 CAN CAN (-): connected to Power FT ECU’s CAN port
Power Ground - Black/White
Lambda Output - Yellow/Red
Switched 12V - Red
Battery Ground - Black
7 8 9 10 11 12
1 2 3 4 5 6
O2 sensor - Pin 6 - Red
O2 sensor - Pin 5 - Yellow
O2 sensor - Pin 1 - Brown
CAN HI - Pin 4 - White/Red
O2 sensor - Pin 4 - Blue
O2 sensor - Pin 3 - Green
O2 sensor - Pin 2 - Orange
CAN LOW - Pin 3 - Yellow/Blue
Harness Connector Rear View

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

NANO PRO
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Connector Nano PRO
(Pin) - (Wire color) Function wire sensor Connector Bosch LSU
4.2 (Pin)
Connector Bosch LSU
5.2 (Pin)
1 - Red IP 6 5
2 - Yellow Ground sensor signal 5 4
3 - Brown Positive sensor signal 1 1
7 - Orange Calibration resistor sensor 2 6
8 - Green Heat positive signal sensor 3 2
9 - Blue Heat ground signal sensor 4 3
5.2 Replacement of Bosch LSU sensor connector 4.2 for 5.2
This procedure is necessary if you want to use a Bosch LSU 5.2 sensor in a Bosch LSU 4.2 Sensor harness. Refer
to table below for sensor pinout:
5
26
31
4
Connector Bosch LSU 5.2
2
51
46
3
Connector Bosch LSU 4.2
Harness connector rear view
5
2
6
31
4
O2 SENSOR - Pin 6 - Red
O2 SENSOR - Pin 5 -Yellow
O2 SENSOR Brown- Pin 1 -
O2 SENSOR - Pin 4 - Blue
O2 SENSOR - Pin 3 -Green
O2 SENSOR - Pin 2 - Orange
Harness Connector Rear View
213456
7891011 12
O2 Sensor
-
BOSCH 4.9
Bosch LSU 4.9 Electrical diagram
5
2
6
31
4
O2 SENSOR - Pin 6 - Red
O2 SENSOR - Pin 5 -Yellow
O2 SENSOR - Pin 1 -Brown
O2 SENSOR - Pin 4 - Blue
O2 SENSOR - Pin 3 -Green
O2 SENSOR - Pin 2 - Orange
Harness Connector Rear View
213456
7891011 12
O2 Sensor
-
BOSCH 5.2
Bosch LSU 5.2 Electrical diagram

NANO PRO
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Connector Nano PRO
(Pin) - (Wire color) Function wire sensor Connector Bosch LSU
4.2 (Pin) Connector NTK Sensor
1 - Red IP 6 3
2 - Yellow Ground sensor signal 5 1
3 - Brown Positive sensor signal 1 5
7 - Orange Calibration resistor sensor 2 -
8 - Green Heat positive signal sensor 3 8
9 - Blue Heat ground signal sensor 4 6
2
51
46
3
Connector Bosch LSU 4.2
5.3 Replacement of Bosch LSU sensor connector 4.2 for NTK
This procedure is necessary if you want to use a NTK sensor in a Bosch LSU 4.2 Sensor harness. Refer to table
below for sensor pinout:
1
2
4
68
357
Connector NTK Sensor
Harness connector rear view
NTK Sensor Electrical diagram
1
2
4
68
357
O2 SENSOR Red- Pin 6 -
O2 SENSOR Yellow- Pin 5 -
O2 SENSOR Brown- Pin 1 -
O2 SENSOR 3Green- Pin -
Orange - Not Used
Harness Connector Rear View
213456
7891011 12
O2 Sensor
-
NTK
O2 SENSOR Blue- Pin 4 -

NANO PRO
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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.