FuelTech NANO PRO O2 Conditioners Owner’s Manual

FuelTech NANO PRO O2 Conditioners Owner’s Manual

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 confi 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 confi gure the Bosch LSU Sensor type.

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 certification for the use on aircrafts or any flying devices, as it has not been designed for such use purpose.
In some countries where an annual inspection of vehicles is enforced, no modification 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 ( ncluding but not limited to improper maintenance), accident, improperinstallation, tampered seal, modification (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 files in order to evaluate a claim.

Seal violation voids warranty and renders loss of access to upgrade releases.

Characteristics

• Water proof (IP67 Certified)
• 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
• Configurable 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)

Package contents

• Nano PRO module
• Instructions manual
• 4 screws for fixation

IMPORTANT
Installation MUST use the screws that come with the product. Out of specification screws may damage the housing, causing loss of warranty.

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 configured 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

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

Harness Connector Rear View

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 specific 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.

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:

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

IMPORTANT
The Nano PRO is factory configured to suit the Bosch LSU 4.2 sensor, if you want to use another sensor, you need to change the configuration in the Nano PRO software.
This will prevent the sensor from being damaged or reading errors occurring.

Bosch LSU 4.9 Electrical diagram

Harness Connector Rear View

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.

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

Bosch LSU 5.2 Electrical diagram

Harness Connector Rear View

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:

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

NTK Sensor Electrical diagram

Harness Connector Rear View

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 fi ne tuning.

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

Bosch LSU 4.2 Wideband 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 (infi 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 WBO2 Nano automatically calibrates the sensor.

Part Number Bosch (Brazil): 0 258 007 057 or 0 258 007 351
VW: 021-906-262-B

BOSCH LSU 4.9

The Bosch LSU 4.9 O2 sensor works the same as the 4.2

Part Number Bosch (Brazil): 0 258 017 025

BOSCH LSU 5.2

The O2 sensor Bosch LSU 5.2.

Part Number Bosch (Brazil): 1 928 404 719

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.

NTK

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.

Part Number FuelTech: 5005100011

Free-air calibration

The NTK O2 sensor needs an open air calibration, so after confi guring in the software it is necessary to connect the sensor to the Nano PRO and carry out the calibration.

To perform this procedure, fi 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.

O2 Sensor Installation

The sensor must be inserted in the exhaust system with its tip exposed to the exhaust gas flow. It must stay in an angle between 10 to 80 degrees to horizontal position, that is, with its end downward, in such a way that steam droplets cannot be accumulated between the body of the sensor and its ceramic part, which could cause damage when the sensor is used. The sensor must not be placed vertically, as it becomes subject to excessive heat.

It is recommended that the sensor is installed at least one (1) meter away from the exhaust manifold to avoid excessive heat, and at least one (1) meter away from the exhaust external output to avoid incorrect readings caused by oxygen in the air outside the exhaust system.

Notice that such recommendations are not obligatory, as vehicles with a smaller exhaust system will need to have the sensor placed closer to the engine.

The sensor must stay away from the cylinder head and from areas where one cylinder might affect the exhaust air more than the others must. Avoid placing the sensor close to the exhaust manifold joints, as some allow the inflow of air, resulting in incorrect readings.

CAN Communication

The Nano PRO has CAN communication, which allows the module to send and read information from the Power FT ECU’s that are also connected in the network. Included on the Nano harness are two 4-way CAN connectors that plug and play with other Nano PRO units as well as the Power FT ECU’s.

When connected to the CAN port, the Nano PRO can read what the fuel and the measurement unit (lambda or AFR) that the ECU is set, adjusting itself to these settings, disabling the analog output and sending the AFR value to ECU in the range of 2.94 to 149.9 AFR Gas.

In the CAN network, during the O2 sensor heating period, the value displayed in the Power FT ECU’s will be equal to 0 (zero) and the back of lambda gauge will turn yellow.

In case of any error during work, in addition to the warning on Nano PRO display, the error will be sent via CAN to the Power FT ECU’s and recorded in “Status Events” log.
To connect the Nano PRO via CAN to Power FT ECU’s simply plug the 4-way cable to the ECU CAN port.

Configuration through the Nano PRO Interface

It is possible to confi gure the FuelTech Nano PRO entirely from the screen. Below are a few example screens.

Using the interface

To navigate between screens, press the buttons (1) in the lower corners of the

interface.

There are two ways to get into the menu:
a – Press button (1) to change screens until you reach the menu screen.
b – Press and hold the button (1) for one second to go directly to the menu.

Dashboard configuration

Confi gures the number and information of the dashboards. It is possible to create up to 5 different dashes.

Confi gure here the screen that will be the main dash, presented on startup of the Nano PRO. You can choose the total number of Dashboards, for that, click on one of the 3 free spaces.

Wideband Meter

There are two possibilities for viewing the O2 sensor value.
Ideal range bar: In this option, the O2 sensor value will be shown on the display and just below a bar with the ideal range of air/fuel mixture.

NOTE
To display a bigger O2 value on the display, do not confi gure the ideal range values.

Value only: in this option the O2 sensor value will be very similar to the WB-O2 Nano. Only the O2 sensor value will be displayed.
In this case, it is possible to confi gure the color of the value shown on the display.

Available colors: White, Blue, Green, Yellow, red and Orange.

Select which will be the Nano PRO’s main dash screen. It’s possible to confi gure any of five screens as the main screen.

Data gauge

Select which data will be displayed in each dash. It is possible to confi gure up to 3 parts of information per screen with different sizes and positions.

If necessary, also confi gure the minimum and maximum values for each confi gured information. These alerts are displayed on the Nano PRO screen and are independent of the ECU, and may be different values from those confi gured in each module.

Button

Select which buttons will be triggered in each dash. It is possible to confi gure up to 2 buttons per screen.

After each confi guration it is necessary to go to the last screen and click on the save button.

IMPORTANT
Buttons to work correctly, it is necessary to confi gure the inputs in the ECU map in the FTManager software.

NOTE
When the screen remains idling with no input from the user for longer than 10 seconds, the action is canceled and the interface returns to the main screen.

Display configuration

In this menu you can choose the screen lighting in day and night modes. These values are independent of the ECU, that is, the day and night values can be different between ECU and Nano PRO Switching between modes can be activated by a button on the Nano PRO screen or come directly from the ECU via the FTCAN 2.0 network.

After lighting setup, the display calibration screen will appear.
It is recommended that it be done on the fi rst installation and whenever you notice difficulty in touching the screen.

Heating setup

O2 sensor heating is essential for starting the lambda sensor reading. On the Nano PRO there are 3 heating modes:

Normal: Standard heating currently used by the WB-O2 Nano.
This is the recommended mode for FuelTech ensuring a longer O2 sensor life.

It is possible to choose one of the three parameters to start the heating in automatic mode (whenever it is turned on), by temperature or RPM.

Fast heating, uses a high current to shorten the heating time. By using this option the O2 sensor life will be drastically reduced.

It is possible to choose one of the three parameters to startthe heating in automatic mode (whenever it is turned on), by temperature or RPM.

Limited: Limits heating current to 2, 2.5, and 3 Amps

It is possible to choose one of the three parameters to start the heating in automatic mode (whenever it is turned on), by temperature or RPM.

O2 sensor configuration

Select the model of the O2 sensor installed in the car. On the next screen confi gure the installation position.
The next step is to defi ne the unit, fuel type and also the working scale (analog output

Procedure for replacing the Lambda O2-sensor
Perform the procedures described below to change the probe:

a – Disconnect the old O2 sensor and remove it.
b – Change the confi guration for the new O2 sensor on the Nano PRO.
c – Turn off the module.
d – Connect the new O2 sensor.
e – Turn on the Nano PRO.

Free-air calibration – NTK Sensor

The NTK O2 sensor needs an open air calibration, so after configuring in the software it is necessary to connect the sensor to the Nano PRO and carry out the calibration.

To perform this procedure, first 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.

Possible errors after calibration – NTK Sensor

Current highest 4.3 -> faulty sensor
Current below 3.2 -> sensor is not Free-air

Hour-meter – NTK Sensor
This function allows checking the usage time of the probe installed in the equipment. There is a RESET button to reset the usage time count.

Manual

Through the interface there is a QR Code to download the manual in its complete version with all the necessary information for the operation of the Nano PRO.

Language
Fueltech Nano PRO has the possibility of changing language for the interface.

About

This menu shows the O2 sensor usage time and the average heating time, as well as the hardware, software and serial number of the Nano PRO. It is also possible to reset the O2 sensor usage time by clicking on the “Reset” button.

Configuration via the FTManager Interface

To confi gure the Nano PRO through the FTManager software, follow the steps described below:
a – Open the map in FTManager Software
b – Access the “Tools” menu and then click on “External Modules” and locate “Nano PRO and open the configuration screen.

This screen is divided into four distinct parts.

1. Dashboard confi guration: Allows you to confi gure the 5 dashboard screens with the data you deem necessary, as well as defi ne which will be the main screen.
2. Advanced Settings: There are three tabs with all the necessary settings for the Nano PRO to operate correctly
   • Display and language: select the language of the Nano PRO and set the brightness levels for day and night mode.
   • Heating: adjusts the O2 sensor heating mode and sets the parameters of RPM and minimum temperature for the start of heating.
   • O2 sensor: defi nes which sensor will be used, Unit of measure and the Range of the analog output.
3.  Buttons and Nano PRO selection: there are four buttons for reading and writing the settings in the Nano PRO memory as well as selecting which device is being confi gured (if you have more than one Nano PRO on the CAN network).
4.  Serial number and hardware and fi rmware version.
   

Configuration to use Nano PRO out of the CAN Network
Nano PRO allows the selection of the display unit and O2 sensor reading scale, but, these settings are read from the Power FT ECU’s during its initialization. In case it is removed from the CAN network, Nano PRO goes back to factory configuration.

Datalogger Channels

There are 3 log channels for each O2 sensor fi tted to the vehicle, which record information about the O2 sensor heating. With these channels it is possible to have a complete diagnosis, letting you know if the sensor is installed in the correct position, for example.

Sensor heater PWM: Records the percentage of duty cycle applied to the O2 sensor heater
Sensor Temperature: Records the internal temperature of the sensor
Sensor Resistance: Records the internal resistance in Ohms of the sensor

Nano PRO Software Update

To update the Nano PRO software, follow the steps described below:

a – Connect the ECU through the USB cable to the computer and open the FTManager Software.
b – Turn ON the ignition key.
c – In the FTManager software, on the “Home” tab, click on the button “Read ECU” (1) to open the map in the software.

d – Open the “Tools” tab and click on the button “CAN Updater” (2);

e – A screen for updating the Nano PRO Software will open. On the left (3) of the screen will appear all the equipment available on the CAN network. Select which Nano PRO will be updated.
f – Click on the button “Update” (4).
g – Wait for the update process to fi nish, after that the Nano PRO will restart automatically.
h – Check the Nano PRO settings. See “9. Confi guration via the FTManager Interface” on page 16, or directly from the Nano PRO interface.

Lambda Readings analog outputs

Lambda Analog Output in Volts – 5.14 to 17.6AFR

Lambda Analog Output in Volts – 8.7 to 16.2 AFR (default)

Lambda Analog Output in Volts – 9.6 to 19.1 AFR

Lambda Analog Output in Volts – 9.6 to 58.8 AFR

Lambda Analog Output in Volts – 9.6 to 146.9 AFR

When there is an output reading error, the analog output locks at 0.00V. Thus, it is possible to know if there is any problem or error in the equipment. To configure this output on external equipment, it is necessary to supply the first and last values of the table above

Analog output Lambda/AFR

Nano PRO Codes

Informative Codes

When turning Nano PRO power on, the following information will be displayed: Product name
Measurement unit (Lambda, AFR gasoline, AFR alcohol or AFR Methanol)
Analog output scale (as seen on chapter 6)
Cylinder identifi cation (when connected via CAN with Power FT ECU’s): tells which cylinder the conditioner is reading, when used for individual cylinder adjustment.
Then the word HEATING indicates the O2 sensor heating for operation.
After heated, the word HI appears when AFR above 146.9 AFR Gas (64.1 AFR Alcohol) is read.

Error Codes

VCC = 12V Power / GND = Ground

• Check the wiring harness.
• Check connection between harness and sensor plugs.
• Replace the sensor.

Short circuit with the VCC|

• Check the wiring harness.
• Check and improve ground or power.
• Check the connection between the harness and sensor plugs.–  Replace the sensor

Heater Short circuit with the GND|

• Check the wiring harness.
• Check and improve ground or power.
• Check the connection between the harness and sensor plugs.
• Replace the sensor

Signal Short circuit with the GND|

• Check the wiring harness.
• Check the connection between the harness and sensor plugs
• Check Spark Plugs, Spark Plug Cables.
• Check where the harness passes through to look for possible damage.
• Replace the sensor.

Signal Short circuit with the VCC|

• Check the wiring harness.
• Check the connection between the harness and sensor plugs.
• Check Spark Plugs, Spark Plug Cables.–  Replace the sensor.

Sensor not configured|

• Configure an available sensor model see “8.4 O2 sensor configuration”.

Fixing template (in)

USA
455 Wilbanks Dr.
Ball Ground, GA, 30107, USA
Phone: +1 678-493-3835
E-mail: info@FuelTech.net
www.FuelTech.net

FuelTechUSA

BRASIL
Av. Bahia, 1248, São Geraldo
Porto Alegre, RS, Brasil
CEP 90240-552
Fone: +55 (51) 3019 0500
E-mail: sac@FuelTech.com.br
www.FuelTech.com.br

FuelTechEMS

References

• Injeções Eletrônicas Programáveis FuelTech
• FuelTech USA

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