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  Table of Contents

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1.0 RSTuner introduction

RSTuner is an easy to use software application, specifically designed for diagnosing and calibrating Renault engines. RSTuner consists of a software application (Windows) and an OBD vehicle communication hardware interface (VCI). For the latest software and currently supported models, visit http://www.fastchip.nl.


The RSTuner home screen, here connected to a vehicle and showing information such as current ECM status, programming history, other ECUs present in the vehicle network etc.





The AIO Suite in action, one of the modules for RSTuner.




1.1 RSTuner features




1.2 RSTuner requirements








2.0 Installation




2.1 Windows 8+ driver installation for older Fastchip VCI
If you are using Windows 8 or higher and have an older Fastchip VCI with bootloader 101 or lower, you must follow these steps:

From the Metro Start Screen, open Settings.
(move your mouse to the bottom-right-corner of the screen and wait for the pop-out bar to appear, then click the gear icon).

Your PC will restart and you will be presented with a menu.
These steps are only required once for the driver installation. You can use RSTuner and the Fastchip VCI driver normally afterwards.







3.0 Connecting to the vehicle
Locate the OBD Diagnostic port on your vehicle and plug-in the supplied 16-pin OBD cable. See also 9.1 OBD port locations.

Engine stopped

On vehicle with key: On vehicle with keycard:

Connection screen help
Wait patiently while RSTuner establishes a connection with the ECU.
Depending on the vehicle type and selected options this can take anywhere from under a few seconds to several minutes.
In case your vehicle type doesn’t support automatic VIN (Vehicle Identification number) retrieval, enter it manually (all caps).



You only have to perform this once. Make sure you enter the correct VIN. RSTuner will choose the correct vehicle info based on this VIN.

Upon successful connection, ECU information and fault codes are shown in the main dialog.







4.0 Using RSTuner




4.1 Actuator tests
Supported tests depend on the vehicle type, some examples: Press Start actuator test button to activate chosen actuator.



Press Stop actuator test button to end the actuator test prematurely.



4.2 Live data


Click Live Data Grid tab to view the supported parameters for the connected vehicle type.



Click Live Data button at the top of the screen to start requesting data from the ECU.

Display a large amount of parameters for an overview of the engine status.


Or keep tabs on a few key parameters.


Parameters will be updated as fast as possible depending on the ECU protocol.
The current, minimum and maximum values are also displayed for each parameter.



In order to view parameters graphically, switch to the Live Data Graph tab, and press the settings button. Next, select the parameters you want to view. A maximum of 16 parameters can be viewed simultaneously.



To stop Live Data updating, press Live Data button again.



NOTE: For RSTuner with wideband inputs to track wideband data, you must activate at least one wideband parameter in the Live Data graph during logging.

After Live Data updating has stopped, you may use the slider on the Live Data graph to scroll through logged data. Place the time marker by clicking with the mouse on the position where you want it to be. Watch how the parameter values change according to the marker placement. To get a closer view on fast changing values, use the timescale + button. This will zoom the view for a better look.



Each parameter can be easily compared against each other. Very helpful for diagnosing and engine calibration.
If the screen looks too 'busy', parameters can be easily turned off/on by using the Settings... button.

Scrolling through the log can be done in three ways:



4.2.1 Save/load Live Data


Click the Save log button to store a Live Data session.



Select the parameters and number of samples to be saved from the Save log dialog.
Choose your desired filename and directory and click the OK button.



Previously saved log files can be reviewed at any time by using the Load log button.

Real-time playback is available for the Live Data Graph and Vehicle Dynamics display after loading a log by pressing the play button next to the time slider.



4.2.2 Live Data log format
A Live Data log is saved as a CSV* file inside a ZIP container. Any ZIP compatible unpacker can be used to extract the CSV file inside, which can then be used in almost any spreadsheet and database applications.

Subtitles will be saved in the commonly used .srt format, which you can then edit into your own driving videos using third party applications. Please note that logs saved in this format can not be loaded back into RSTuner.



Example of a video using live data subtitles generated by RSTuner.



* Starting with RSTuner 1.6.7 - If you have old Live Data log files made with previous RSTuner versions and wish to convert these to the new CSV format, simply load them in the latest RSTuner and re-save them.



4.2.3 Live Data for engine recalibration
The best way to log data for engine recalibration purposes, is to make a 3rd gear full throttle run, with traction control switched off.

Making the full throttle data log run: After the run is done do the following; NOTE: Disconnecting from the car before saving the logged data erases all previous logged data. Save the logged data first !



4.2.4 Live Data interval
(applicable to CAN vehicles only)

Our newest RSTuner hardware has become so fast that in combination with the bandwith and speed available on the CAN network it is possible to overload the ECU with Live Data requests. To prevent this a certain amount of throttling of the requests is necessary, which is what the interval setting does. A higher setting means more time between requests and thus less stress on the ECU. If you experience 'gaps' or pauses in your Live Data logging, a higher interval might be required. However, a higher interval means less accurate logging, so the ideal setting is the lowest one that does not give you problems.

This setting also affects Performance Analyzer accuracy (since it uses live data requests to get engine data).



4.3 Diagnostic trouble codes
After a connection has been established (see section 3.0 Connecting to the vehicle), ECU fault codes are automatically retrieved from the ECU.
Stored codes are highlighted in orange and present codes in red.

Stored codes mean there was a problem, but it is not present anymore.
Present codes mean there is currently a problem. Codes in RED can only be cleared after making the necessary repairs first.



The DF codes listed are the official Renault fault codes.

Clearing stored (orange) codes after making the necessary repairs:


After successful erasure of the codes, use the Refresh DTC button to refresh the current state of DTC for all available and supported ECUs.



4.4 Performance Analyzer


The Performance Analyzer (from hereon abbreviated to PA) allows you to measure the performance of your vehicle.

(also see 4.2.4 Live Data interval if you are experiencing problems with your measurements)



How it works

The PA measures engine speed reported by the ECU, many times per second. Based on this, the PA calculates wheel performance from vehicle weight and acceleration rate. All that is needed is a simple full throttle in gear test of the engine on a flat road surface. Obviously it is important to use the correct vehicle weight including driver weight.

How to make a PA log

Method B is recommended if your vehicle supports it.

Using the PA is very simple. Start the PA by filling in the total vehicle weight (required for Method A only) and pressing the Activate PA mode button.
The PA is now activated and waits for the throttle WOT trigger to start collecting performance data.
Start driving and accelerate slowly to 3th gear, now press the accelerator pedal to the floor from low revs down. When it is time to shift to higher gear release the accelerator pedal. PA will automatically abort collecting data.

PA will now display calculated wheel power -torque and -horsepower on the screen. Total drag power is also shown which is the amount of power your vehicle needs to overcome air resistance. You may save the PA log for later analysis. Or make additional logs driving in the opposite direction for wind speed correction.



The following conditions will help the PA to produce the most accurate performance results.

The vehicle weight specified should be the current weight of the vehicle at the time of the test. Including number of occupants, fuel tank level, any items being carried in the car.
Underestimating the vehicle weight will produce lower performance figures.
Overestimating the vehicle weight will do the opposite.

Aerodynamics

PA takes into account aerodynamic drag when calculating engine performance. Vehicle drag co-efficient and frontal area are the parameters required to calculate power lost to aerodynamic drag. These parameters are known by RSTuner after connection to the vehicle.

How does the PA compare to a chassis dynamometer?

PA gives real world performance figures in power at the wheels. Not a single correction is made during calculation of the result. This is the power that the vehicle is putting down onto the road, plain & simple.
Every chassis dynamometer is different with different cooling setups. Therefore results will vary amongst different dyno’s.

NOTE: PA results are influenced by outside conditions like wind and road surface.

SAFETY CONSIDERATIONS: Always perform PA testing with 2 people. The vehicle driver must have his eyes on the road at all times. PA should only be used on private roads and test tracks. Under no circumstances should performance analyzing be carried out on the public highway or in any other situation where its use may break speed limits or contravene any laws. Fastchip takes no responsibility for inappropriate use of the PA.



4.5 Reading data from the ECU
Before reading or writing the control unit, read 6.0 Reprogramming precautions to ensure a successful procedure.

4.5.1 Read ECU


RSTuner allows you to backup the ECU software. Always carry out this procedure BEFORE attempting to write the ECU with updated software.

For reading or writing the contents of the ECU the engine must NOT be running.
Before reading or writing the control unit, read 6.0 Reprogramming precautions to ensure a successful procedure.



Wait patiently until RSTuner has finished and saved the ECU contents to hard disk.



4.5.2 Read CAL


Performs a calibration read instead of a whole readout of the ECU. Typical calibration file sizes range anywhere from 32 kB to a few hundred kByte.
Not supported by every vehicle type.



4.6 Writing data to the ECU
Before reading or writing the control unit, read 6.0 Reprogramming precautions to ensure a successful procedure.

4.6.1 Write ECU


NOTE:

Mégane II and Clio III owners NEVER ATTEMPT A FULL WRITE OF THE ECU WITHOUT A SUITABLE BATTERY CHARGER ATTACHED.

 (See 6.0 Reprogramming precautions).

Allow you to write the ECU memory content. Always make a backup of your ECU first, if not done so already.

For reading or writing the contents of the ECU the engine must be stopped.
Writing the ECU is at your own risk. Read 6.0 Reprogramming precautions and 9.0 Disclaimer before usage.

Choose the correct file for your ECU. Choosing the right file is your own responsibility. Programming the wrong file may result in ECU failure or engine damage. Also read section 5.0 Which calibration file to use.

A write ECU procedure may take up anywhere between 10 ~ 30 minutes to complete, take the necessary precautions to ensure the procedure will complete successfully.

NOTE: After each reprogramming ECU learning values such as, idle offset, fuel trim etc. are erased and set to their default values. Allow up to 10 drive cycles for the ECU to complete learning these values again. This learning behavior can cause unstable idle rpm after reprogramming.



4.6.2 Write CAL


Performs a calibration (partial) write of the ECU. Typical calibration file size is 32 kB to 64 kB.

Calibration writes allow for faster ECU reprogramming, but only writes a small portion of the ECU’s memory. Therefore before writing, always verify the software version number equals the file software version number. The calibration numbers are of less importance, but the software version numbers always have to be equal to each other.




Also see 5.0 Which calibration file to use.







5.0 Which calibration file to use
NOTE: Programming the wrong software version can inflict permanent damage to the ECU and its sub-systems.

On the Fastchip.nl ECU calibration download page all files are named xxxx_xxxx. The first 4 digits mark the software version, which tells the ECU what to do. The second 4 digits mark the calibration version, which tells the ECU how to do things. So if you see a file named 6400_2A07.rst it tells you, its software version 6400 and calibration version 2A07.

Now, how to determine the correct file download for your car?

Let's assume you have a 172 Clio II. Connect to the car with RSTuner and look at the status bar after connection is established. Here you can see the car's VIN: VF1 CB15 0629638376.

Go to the proper download directory on the ECU calibration download page, according to the car's type designation. In this particular case CB15.

Now look which software version the ECU is running. The first 4 digits, remember? You can find this on the ECU information tab. In this case 6400.



In case you want to carry out a total ECU reprogramming (.rst file Write ECU) you need to use a .rst file that begins with software version 6xxx_xxxx. Programming anything else could do harm, see above statement.

Examples total ECU reprogramming (.rst file Write ECU)

In case you only want to perform a partial ECU reprogramming (.cal file Write CAL) you need to have a .cal file that begins with the same software version number, in this case 6400_xxxx.

Examples partial ECU reprogramming (.cal file Write CAL)





6.0 Reprogramming precautions

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Reprogramming the ECU is for your own risk at all times !
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Re-writing the ECU can take 2 - 50 minutes, depending on the ECU in use and size of upload file.

Whenever performing an ECU reprogramming, make sure you program the correct software version compatible with the software that already resides on the ECU. ( See also section 5.0 Which calibration file to use )
RSTuner software has a unique feature in the form of a "Verify software version dialog" which gives the user the chance to verify the software version he/she has chosen against the actual version that resides on the ECU, before each reprogramming session.
Programming the wrong software version can inflict permanent damage to the ECU and its sub-systems.

A 100% battery condition + 10A battery charger are crucial when performing a full ECU rewrite.

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Reprogramming the ECU is for your own risk at all times !
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PC/Laptop
Vehicle



6.1 Clio III battery discharge
During reprogramming the engine cooling fans come on. This will quickly discharge the battery which might lead to a programming failure. Therefore it is highly recommended that you remove the cooling fan relay located in the engine bay next to the battery before each reprogramming.



Remove lid to gain access to the cooling fan relay (7) ,towards the front of the car. Unplug it before every reprogramming sequence. Do not forget to install the relay again after reprogramming is done.

NOTE: Unplugging this relay will only disable the high speed cooling fan.

A battery low charge signal may be heard during reprogramming, but do not interrupt the programming sequence. Always let the programming continue until it is finished.

NEVER ATTEMPT A FULL WRITE OF THE ECU WITHOUT A SUITABLE BATTERY CHARGER ATTACHED



6.2 Mégane II battery discharge
During reprogramming the engine cooling fans come on. This will quickly discharge the battery which might lead to a programming failure. Therefore it is highly recommended that you attach a suitable battery charger before each reprogramming.

A battery low charge signal may be heard during reprogramming, but do not interrupt the programming sequence. Always let the programming continue until it is finished.

NEVER ATTEMPT A FULL WRITE OF THE ECU WITHOUT A SUITABLE BATTERY CHARGER ATTACHED







7.0 RSTuner Premium
Our RSTuner Premium version offers a 'Flight Data Recorder' which can record many hours of engine live data on its internal storage without the use of a laptop, simply by pressing the control button. Up to 64 sessions and approximately 100 hours* can be stored before the user has to transfer them to their PC for review purposes. Furthermore, RSTuner Premium allows you to set any available engine parameter as a trigger for the output channel.

* Total recording time varies on the vehicle you are connected to and interval setting (see 4.2.4 Live Data interval).





7.1 Stand-alone data logging
Please note: before being able to use the stand-alone features of your RSTuner Premium: Now your RSTuner Premium is ready for stand-alone functionality.



Please note: Whilst pressing the control button and it doesn't respond, release and wait atleast 1 second before trying again. (anti- bounce delay)

Start manual gauge data output (gauge module support) The VCI will try to establish communication with the engine ECU and start with gauge data output.



Start recording The VCI will try to establish communication with the engine ECU and start with data recording.



Stop recording Important: Stopping the engine or powering down the interface while it is recording will cause a loss of the last recorded data session. Always stop recording first.



Erase recording

When not logging, press the control button for more than 10 seconds until the RED indicator LED comes ON, to erase ALL logs.
Important: This will erase ALL logs currently stored in the interface. Your config will not be erased.



Indicator LED



7.2 RSTuner Premium Control Panel


Access the special RSTuner Premium features by clicking the Premium button (RSTuner Premium hardware needs to be attached to PC).



7.2.1 Internal storage management


To the left you will see a list of your stored stand-alone logs and their duration in chronological order.



7.2.2 Live Data configuration


OBD-II type

The type of Live Data / parameters you wish to request from the vehicle. Enhanced is for Renault vehicles and will give more parameters and more accurate logging. Legislated is for non-Renault vehicles and usually has a more limited selection of parameters.



Live Data parameters (not required for all vehicles)

Click this button to make a selection of parameters you wish to log. Logging accuracy usually slightly decreases the more parameters you activate (depending on vehicle).



Interval (applicable to CAN vehicles only)

See 4.2.4 Live Data interval.



Include AD / wideband requests (connector inputs)

Tick the box, if you want to process the connector inputs (4) as well. If not, it's best to leave it off since it slightly improves Live Data logging frequency.



7.2.3 I/O Trigger


RSTuner Premium allows you to set any available Live Data parameter as a trigger for the output channel. The I/O trigger can be reset & disabled by using the 'Reset / disable trigger' button.

For information about connecting hardware to the I/O see 8.0 Input / Output (IO).



7.2.4 iMFD Gauges
Refer to 10.2 iMFD Display Module support







8.0 Input / Output (IO)
RSTuner Pro has four (4) inputs. Additionally, RSTuner Premium has one (1) programmable output.
This feature is not available on our standard interface units, ONLY for those who have a third plug that sticks out of the side interface where a pigtail plugs in. The plug consists of 6 pins in a row.

WARNING: Regarding RSTuner Premium+ units: AD1-in input is converted to a 3.3V power supply output for PLX gauge support! Only connect the PLX gauge 3.3V black/white stripe wire to this terminal. Doing otherwise may inflict permanent damage to the VCI and/or gauge and is NOT covered under warranty by any means.



8.1 Enhanced I/O specifications
Output driver circuit CANNOT tolerate an over 100 mA continuous load. Do not exceed these limits or you will damage the output permanently. Always use a 100 mA fuse in line with your connected device.
Blown output transistors will NOT be covered under warranty.



8.2 Connecting I/O


* WARNING: Regarding RSTuner Premium+ units: AD1-in input is converted to a 3.3V power supply output for PLX gauge support! Only connect the PLX gauge 3.3V black/white stripe wire to this terminal. Doing otherwise may inflict permanent damage to the VCI and/or gauge and is NOT covered under warranty by any means.



8.2.1 Sample relay circuit
The following circuit uses a Bosch Automotive Relay, Part Number 0-332-204-150. When and how the relay turns on and off by tracking any engine parameter or A/D channel value is configured in the RSTuner Premium Control Panel. The output can be used as a status indicator or external high current device control. NEVER use the interface to control relays where safety is an issue or vehicle damage may occur. Do not forget to add the driver protection fuse.





8.2.2 Sample light circuit
The following circuit uses a 12V warning LED with acoustic warning signal.
When the light / buzzer turns ON and OFF by tracking an engine or A/D channel parameter, is configured in the RSTuner Premium Control Panel. You can use any type of light/color you want, as long as it does not draw more than 100 milliamps when lit. If it does you will need to add a driver relay to isolate the interface unit from the larger current draw (see 8.2.1 Sample relay circuit,).





8.2.3 Sample analog circuit
With our Pro / Premium interface, you can integrate 0-5v analog signals from various sensors such as EGT, wideband and others right into our Live Data logger. You will have real time data from those sensors right next to your engine Live Data such as TPS, RPM, KMH, etc.

The following circuit shows the connection between the 0- 5v analog output from an aftermarket wideband controller or EGT sensor (exhaust gas temperature) using the supplied pigtail connector.
Refer to the manufacturer’s documentation on how to connect and configure their device.
The analog signal may be connected to any of the four analog inputs.
RSTuner software has predefined inputs for a number of wideband controllers, please see Wideband parameter support.


Techedge Wide Band O2 - TE 2A0: result = volts / .5 + 9
Innovate Wide Band O2 - LC1: result = volts / 0.3324 + 7.35
Raw voltage: result = volts / 1 + 0






8.3 Wideband sensor connections
Included in our RSTuner software are Live Data parameters that automatically peform the calculations for these wideband sensors: To use these parameters you must connect your sensor to either AD1 or AD2:







9.0 Supported models
For a complete up to date list of RSTuner supported models, please visit http://www.fastchip.nl and look under Help > Supported Vehicles.



9.1 OBD port locations
Clio II
OBD Diagnostic port located under ashtray:

Clio III
OBD Diagnostic port located under keycard slot, remove lid to gain access:

Megane II
OBD Diagnostic port (1) located under keycard slot, remove lid to gain access.:

Megane III
OBD Diagnostic port:

     
Laguna III
OBD Diagnostic port::











10.0 Modules
Starting with RSTuner 3.0 and Fastchip VCI firmware 178, it is possible to extend your RSTuner functionality with the use of modules.



The RSTuner Module Control Panel can be accessed by clicking the Modules icon on the toolbar.



When placing a module order, please include the code listed under 'Order information' with your order.



ECU-related module functions can also be directly accessed via right-clicking on an ECU in the ECU Network list (module must be enabled).





10.1 OBD-II support
This module extends the capabilities of your RSTuner package beyond just Renault vehicles by providing diagnostic access to all ISO 9141-2, ISO 14230-4 and.ISO 15765-4 compliant vehicles.





With this module unlocked, a few new options are available on the connect screen:

ECU Tree and OBD status - refer to the official OBD-II documentation for explanation of the shown data.


Live Data compatible with the existing Grid and Graph and Log saving & loading options.







10.2 iMFD Display Module Support
This module allows you to attach up to four (4) PLX Single Gauges from http://www.plxdevices.com to your RSTuner Premium+.

(Please refer to 8.0 Input / Output (IO) before connecting any gauges.)



RSTuner software enables you to assign any available engine parameter to your gauge(s) without the need to buy any additional PLX Sensor Modules!


The iMFD Gauge Configuration screen, found in the Premium Control Panel, shows your current gauge setup and allows you to add or adjust gauges.



Please note that the I/O Trigger can not be used when iMFD Gauge Configuration is set. To enable use of the I/O Trigger again, reset the iMFD Gauge Configuration.



10.3 RSTuner Matrix Analysis
This module is for advanced users to assist them with creating or adjusting calibration performance files.


The 'Always on top' feature allows you to easily use the RSTuner Matrix Analysis with other programs. Here you see it used in conjunction with WinOLS.

Using the RSTuner Matrix Analysis



Matrix Options






10.4 Vehicle Dynamics
This module unlocks access to advanced vehicle parameters such as:

Vehicle Dynamics updates at 100 samples per second (compared to 10 for regular Live Data) for much greater accuracy and fluidity.

To activate Vehicle Dynamics mode, simple press the large "START Vehicle Dynamics" button.
After a quick connection procedure RSTuner will start updating the parameters.



All Vehicle Dynamics parameters can be viewed using the standard Grid and Graph used by regular Live Data.
On the special Vehicle Dynamics tab a selection of the parameters is shown in a custom graphical view tailored to these specific parameters.



Just like normal Live Data sessions, Vehicle Dynamics sessions can be stored and loaded at a later time with the Save Log/Load Log buttons.
Real-time playback is available after loading a log by pressing the play button next to the time slider.



10.5 ABS support
This module unlocks access to ABS functionality such as:


Diagnostic Trouble Codes
Diagnostic troubles codes are automatically read upon connecting to the vehicle. Refer to the general 4.3 Diagnostic trouble codes section for more information.



ABS hydraulic unit and brake circuits bleeding
ABS hydraulic unit and brake circuits bleeding is accessible through the Modules control panel (right-click module).



Please read the guide 'Help - Bleeding the brake circuit' available on our website for instructions on how to properly perform the brake bleed procedure.



ESP / ASR automatic reactivation treshold
ESP / ASR automatic reactivation treshold adjustment is accessible through the Modules control panel (right-click module).



Allows you to adjust the speed at which ESP / ASR reactivates from the default 50km/h to any speed you wish.
Please be aware of the safety implications before using this functionality!



10.6 Airbag support
This module unlocks access to airbag functionality such as:


Diagnostic Trouble Codes
Diagnostic troubles codes are automatically read upon connecting to the vehicle. Refer to the general 4.3 Diagnostic trouble codes section for more information.



Locking / unlocking airbag ECU
For safe maintenance of the airbag the option to lock it is provided. Go to the Modules Control Panel and right-click the module, then click either 'Lock' or 'Unlock':



* WARNING: Make sure to UNLOCK the airbag ECU after maintenance!!!



Disable a specific airbag DTC



Reset airbag configuration to factory defaults





10.7 EPAS support
This module unlocks access to EPAS (Electronic Power Assisted Steering) functionality such as:


Diagnostic Trouble Codes
Diagnostic troubles codes are automatically read upon connecting to the vehicle. Refer to the general 4.3 Diagnostic trouble codes section for more information.



Set power-steering strategy
Go to the Modules Control Panel and right-click the module, then click 'Set EPAS strategy'.





Here you can see the currently active strategy and set a new strategy.



10.8 AIO Suite


This module unlocks access to the AIO (All-In-One) Suite which has features such as :
TRANSFORM your car, CONTROL the power!



10.8.1 Loading an RSMap
Before loading an RSMap please make sure :
Press the 'Load RSMap & calibration' button. This will prompt you to select a file two times. The first will be for the RSMap (.rsmap file) you have received from Fastchip. The second will be for the calibration file you wish to use/edit. Make sure this calibration is compatible with the RSMap (i.e. same software and calibration number). For the first time you would usually use the current calibration of your car, which can be obtained by using 'Read CAL'.

Please note that to load an RSMap you need a valid vehicle license. Connect to your vehicle with your FASTCHIP VCI to validate your license. Once this is done you can disconnect from the vehicle, but keep the FASTCHIP VCI powered on (USB must stay connected).






10.8.2 Making a trace

PLEASE KEEP YOUR EYES ON THE ROAD AND NOT ON THE SCREEN IF YOU ARE TRACING ALONE



Keyboard shortcuts: To start your trace, first double-click a map entry in the list on the left of the screen. This will open a window with the calibration data of that section on the right.

Make sure this map can actually be traced, you will see controls relating to tracing at the top of the window if this is the case.

Press F1 or check the box next to 'Active' to start the trace. If you are not yet connected to your car you will be prompted to do so.

Note: You will see a blue outline around the table if the trace is active.
Note: You can have multiple traces in different tables active at the same time.

With tracing now active, you should see the hit marker and active cell move around as you rev the engine.

To stop tracing, press F1 again or uncheck the box next to 'Active'. If you have multiple traces active at the same time, they can be all be stopped with one press of the 'Live Data' button at the top of RSTuner.



10.8.3 Reviewing and interpreting a trace
Keyboard shortcuts:





ECU cell interpolation

When calculating the value to use for a cell, the ECU interpolates values from that cell and three adjacent cells: one column to the right and one row below.

Let's take a look at this example:



Here we see four cells. The top left cell has been 'hit', i.e. the X-axis parameter and the Y-axis parameter both fell in that cell. A hit marker is drawn (white dot) and the cell has been coloured to show the value of whatever trace parameter was active.

Three adjacent cells are also coloured in various shades of gray. These cells are 'touched': the ECU will interpolate from these with varying degrees of weight (with the top left hit cell always having the highest interpolation weight / percentage).

The darker the background colour of these touched cells, the higher their interpolation weight. This can be reviewed in detail by right-clicking on a cell.



In the four cell example we see that the hit-marker is at the very top of the hit cell, this means the ECU will interpolate very little from the bottom two cells - thus they are coloured light gray.

The touched cell directly to the right of the hit cell is much darker, in accordance with the hit marker which is just over halfway into the cell horizontally.

A solid black background indicates maximum possible interpolation weight for that touched cell. Since the hit cell is always the highest, that means just under 50% interpolation weight for a touched cell with black background.

Use this knowledge to finetune the calibration for your car..

About Trace Logs

The trace logs are saved on a per-table basis but are not rigidly locked to the original table. The logs can be loaded into a different tables as long as the X- and Y-axis are the same and there is at least one trace parameter match between log and table. You will be notified if any of the table's trace parameters are missing from the log



10.8.4 Editing your calibration

MAKE SURE TO KEEP A BACKUP COPY OF YOUR ORIGINAL CALIBRATION FILE BEFORE EDITING



Keyboard shortcuts: To start editing your calibration, double-click a map entry in the list on the left of the screen. This will open a window with the calibration data of that section on the right.

When you edit a cell, the text colour will change. Blue indicates that the new value is lower than the original value of the cell. Red means the value has increased.

To see what the original value of the cell was, right-click on the cell and look under 'original value'. This popup will also show the change from the original if any.



To save your changes you can either save the calibration file to your PC/laptop via 'Save to file' or upload directly to your car's ECU with 'Write to ECU'.



10.8.5 Writing your calibration

MAKE SURE TO HAVE A BACKUP COPY OF YOUR ORIGINAL CALIBRATION BEFORE WRITING



If you have made changes to your calibration and are ready to test them on the car you can write the edited calibration directly to the car using the 'Write to ECU' button.

To ensure you get access to the ECU, remember the ignition must be ON, but engine must be STOPPED..

Because of your changes a new checksum or CRC must be calculated. This is done automatically for you by the AIO Suite.



10.8.6 AUTOTUNE
AUTOTUNE is an easy way to quickly adjust a table's values, for example when you have changed injectors.



AUTOTUNE will adjust the cell values for a table based on the difference between the ECU's target AFR (Air - Fuel Ratio) and the measured/actual AFR, both obtained from Live Map Traces.
  1. Load an RSMap and connect to vehicle as usual
  2. Open the AUTOTUNE-enabled table
  3. Perform a comprehensive trace
  4. Open the AUTOTUNE window by pressing F11 or selecting it from the table menu
  5. Press Perform AUTOTUNE button
  6. (optional) Review the changes made by AUTOTUNE
  7. Write the changes to the ECU
  8. Repeat step 3-7 if necessary
The example below shows a table with purposefully skewed values that saw a return to near target AFR values in only three runs using RSTuner AUTOTUNE.









11.0 Firmware Update
Fastchip VCI with firmware version 183 or higher can be updated for free through RSTuner software.
(if you have older firmware you can return your VCI to us to be updated, see website)



11.1 Auto-update
To update your VCI firmware, go to the 'About' section and click the 'Check for updates' button.

If updates are available for your device, simpy follow the instructions and let the auto-updater do its work.

.

After the update procedure has completed, be sure to unplug and reconnect the USB connector before proceeding to reboot the VCI.

Do not worry if for some reason the update fails, simply try the update procedure again or revert to the manual update below.



11.2 Manual update
To update your VCI firmware manually, go to the 'About' section and click the 'Update firmware...' button.



Here, use the 'Load firmware update file...' button to select the firmware update file and follow the on-screen instructions.

After the update procedure has completed, be sure to unplug and reconnect the USB connector before proceeding to reboot the VCI.

Do not worry if for some reason the update fails, simply try the update procedure again.







12.0 Online resources

RSTuner website



RSTuner FAQ









13.0 Disclaimer
RSTuner software reads and modifies code and data for engine computers (ECUs). RSTuner software exclusively serves the purpose of repairing a damaged engine computer or the customization of software updates. Improper use of RSTuner software or errors within the software itself can cause engine damage and/or render the vehicle's engine computer non-operational.

Additionally, modification of your ECU's software will most likely void your drivetrain warranty from the vehicle manufacturer and violate emission control regulations in some countries. In no event can FASTCHIP be held liable for any damages arising from the use of RSTuner software.

RSTuner software allows you read code/data from ECUs which can potentially be subject to various copyright and intellectual property laws where you live. It is your responsibility to use (or not use) this software in adherence with these laws.

The origin of RSTuner software must not be misrepresented; you must not claim that you wrote the original software.







14.0 Troubleshooting
If you have read this manual and are still having problems, feel free to contact us via the email listed below.

14.1 Creating a debug log
Providing us with a debug logfile when requested helps us greatly when troubleshooting. Here is how to create one:



(open About screen)
1) Enable debug logging by checking the box
2) Exit About screen and perform the actions that require attention (i.e. connect to the car, read trouble codes etc.)
3) When you are done return to the About screen and click 'Export debug log...' to save the logfile







14.2 ECU information tab screenshot
RSTuner has a built-in and easy to use option to take a screenshot of the ECU information tab.
Click the 'Capture' icon on the toolbar and select the first option. When prompted, choose an easily accessible location to store your screenshot.



RSTuner will automatically switch to the correct tab (if necessary), resize the window and convert the screenshot to lossless PNG format suitable for emaliing.

Please do not change the filename of the screenshot!







15.0 Contact

Fastchip Innovative Car Solutions
info@fastchip.nl

















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