Home > SCT Guide and FAQ

How to Load Tune Files (Datalogging info below)

How to load Emailed Custom Tunes to your X4 Device:

1. Before connecting your X4 to your PC, go to www.sctflash.com and click on the "Support" tab on the top of the page. Select the your device name, select "Downloads". Under the section called Updater, you can click on Download Now. Click "Download Now" or click here to download.

2. Using the provided USB cable, connect your device to the back of your computer. (Allow roughly 30 seconds for the drivers to install)

3. Save your custom tunes from your email to your desktop.

4. Using the shortcut icon on your desktop, open the SCT Device Updater software that you just installed.

5. Now select “Load Custom Tune File” from the Basic Operations menu followed by clicking on “Locate Custom Tunes.”

6. Select the desired tune from the list of tunes.

7. Your tune will appear under “Available Tunes” on the left window within the Updater. You will need to transfer it to the X4 by using the arrow button in the middle of the SCT Updater.

8. Press “Program” when ready to transfer the custom tune to the X4. 9. Repeat steps 5-7 if you wish to load more than one custom tune file.

SCT TUNING AND DATALOGGING FAQ

I'm loading my VMP CUSTOM tune. What's my rev limiter set to? The spark advance says "0", what should I set it at? My battery died while I was loading the tune. (etc)

Unless otherwise requested, we keep your rev limiter to 200-300 rpm over stock on many vehicles. One example would be 2007-2012 GT500s which have a factory limiter of 6,250rpm. We have found we can safely raise that to 6,500 to properly configured cars and take advantage of a broad powerband. We do not recommend revving the engine past that point. For 2013-14 GT500s we maintain the factory limit due to the 7,000 overrev feature. We recommend you contact your personal calibrator via our Customer Support tab on the website for further information or questions.

One of the oddities of a SCT X4 is the default screen and manner in which you load the file. When you first plug it into your OBDII port, you MAY be prompted to update the device. That means you either need to hook it back up to your computer and SCT DEVICE UPDATER available at sctflash.com OR you can use the wi-fi feature if you have wi-fi available. Update it, then plug it back into the car.

The first programming screen oddly enough has GT500 as a "pre-loaded" tune. THIS IS NOT YOUR VMP CUSTOM TUNE. Do NOT load it. In fact, you'll be prompted to erase it and you should do so. This is the 'canned' tune from SCT and it not for use on your car. Choose from CUSTOM TUNES and you'll see our file. It will likely start with a number and octane (ie 1 93 custom......) Load THAT one. You may have more than one. You'll also know that it gives you the ability to choose options. We leave most of those open and available for later use, but you should NOT change anything now. We know that, for example, it shows 'spark' as '0'. Trust us, you don't have '0' spark advance (timing). '0' simply means the point from what we have programmed into the calibration. Please do not change anything in options without contacting your calibrator first.

Make sure your battery is fully charged. Put it on a charger if there is question.

Data logging for International Customers


Go to the Region and Language setting from the Control Panel. You should see this below and select English from the Format drop down menu. That’s the easiest way. Or you can just change all the other settings in the Date and time formats area.


How to Datalog 11+ (older cars below)


SPECIAL NOTE TO VMP TVS COYOTE SUPERCHARGER KIT CUSTOMERS.

While our calibrations are written expressly for you and your car and are based on data proven over thousands of hours of R&D, your calibrations specialist MAY wish to see an "idle/slow rev" log and review it BEFORE you do a "WOT" pull.

If this is the case, they will send you a note along with your tune file stating such. Please follow your calibrator's instructions exactly.

DATALOGGING:

Use Livelink Generation 2 from the SCTFLASH.COM and log the items below.

The software can be found here: https://az824306.vo.msecnd.net/software/LiveLink_...

IMPORTANT NOTES-

DO NOT USE “SAE” OR "EPID". ONLY USE "PID" OR "DMR". Do not use multiple versions of each item. If you have questions about which to use, please call us at (321) 206-9369.

PLEASE NAME YOUR FILES with this naming convention-

YOURLASTNAME-ORDER#-YEARANDTYPEOFCAR-(IDLEANDSLOWREV) OR (WOTLOG)-YOURCONCERN-YOURSCTSERIALNUMBER.CSV

eg. SMITH-14598-2011GT500-WOTLOG-MYCARRUNSGREAT-X404111222333.CSV

To get started data logging open the Live Link program and click “I want to data log a vehicle” and follow the prompts (validate all parameters). To start datalogging turn the key on, with laptop and tuner connected, hit the green button in Live Link (upper left hand corner), start the car without turning the key back off, and let it log for 30-60 seconds at idle(longer if the engine is cold). Once you see the Short Term Fuel Trims change from a static 1.0, you're now in "closed loop" so we need at least 30 seconds from that point on. Once you have recorded that 30-60 seconds, slowly rev to 5000rpm over a period of 30 seconds in neutral, very slow, not quick blips. Stop datalogging (red button) and save this file (File Menu > Save Datalog As...SEE “IMPORTANT NOTES” ABOVE FOR HOW TO NAME YOUR FILE!!!)

ON A SECOND LOGGING SESSION, run the vehicle at WOT through 3rd OR 4th not both this can be done by selecting the gear using the shifter in an automatic transmission car(15+ car must be in sport mode to hold a gear and will only hold a gear if you command that gear using the paddle shifter). MAKE SURE YOU SEE THE SHORT TERM FUEL TRIMS MOVING BEFORE YOU DO THE PULL. Don’t exceed the speed limit or break any laws while doing this, if the car has too much power for the street it should be logged on a dyno. It is critical for the car to not get tire spin during the log and that you advise us that you did get tire spin during the log, if you did(we prefer logs without tire spin). Do this from a very low RPM, about 1000, up to the vehicles rev limiter. Only send one or two short logs. If you have a wideband wired into the tuner don't forget to correctly configure the analog inputs. If you run the car on a dyno make the pull in 4th gear(11-16 MT82 cars need dyno’d in 5th) starting at 1000rpm. Do not send more than two logs or repeats of the same thing. If the vehicle is boosted make sure the A/F does not go above 12.5-13.0 for more than a second while at WOT. Please note whether traction control was on or off during the Wide open throttle pulls. Save the datalogs under the File menu of Live Link and REPLY TO THIS EMAIL WITH THEM, this is important so we have all of your car and order information.

Choose the following items:

Air control temp 2 F (or "downstream")(supercharged only)

Battery voltage

Coolant temp deg F

Etc actual throttle angle

Etc desired throttle angle

Fuel pump duty cycle ( Shelby only)

Intake air temp F

Knock sensor

Lambse bank 1 and 2

Load (as a fraction)

Long term fuel trim bank 1 and 2

MAF frequency
MAF lb. per min.

Measured AFR bank 1 and 2

Output shaft speed

RPM

Short term fuel trim bank 1 and 2

Spark Advance

Torque source

Vehicle speed

Wheel torque error(Not always available)

On 5.0L mustangs:

Variable valve timing intake cam angle bank 1

Variable valve timing exhaust cam angle bank 1

Auto trans:

Commanded gear or gear ratio

How to Datalog 1996-2010


The best bet on 1996-2010 cars is to use livelink generation 2 from the SCTFLASH.COM (v2.5.2 is the latest as of Jan. 2016) and log the items below.
1996-2010 Data logging

The software can be found here: https://az824306.vo.msecnd.net/software/LiveLink_Gen-II.exe

IMPORTANT NOTES-

DO NOT USE “SAE” OR "EPID". ONLY USE "PID" OR "DMR". Do not use multiple versions of each item. If you have questions about which to use, please call us at (321) 206-9369.

PLEASE name your files with this naming convention-

YOURLASTNAME-ORDER#-YEARANDTYPEOFCAR-IDLEANDSLOWREV(OR WOTLOG)-YOURCONCERN-YOURSCTSERIALNUMBER.CSV

eg. SMITH-14598-2011GT500-WOTLOG-CHECKINGAIRFUELRATIO-X404111222333.CSV

Choose the following items:

Air control temp 2 F, Intake air temp 2 F, downstream air temp(supercharged only)

Battery voltage

Coolant temp deg F

ETC actual angle (05+ only)

Fuel pump duty cycle

Knock sensor (if available, sometimes called SPK ADD KS 0) (not on 07-09 GT500, or 04 and older)

Load (as a fraction)

Long term fuel trim bank 1 and 2

MAF voltage for 05-10 and MAF counts for 04 and below

O2 voltage bank 1 sensor 1

O2 voltage bank 2 sensor 1

Output shaft speed

RPM

Short term fuel trim bank 1 and 2

Spark Advance

Throttle position absolute (96-04)

Vehicle speed

Auto trans:

Commanded gear or gear ratio

To get started data logging open the Live Link program and click “I want to data log a vehicle” and follow the prompts (validate all parameters). To start datalogging turn the key on, with laptop and tuner connected, hit the green button in Live Link (upper left hand corner), start the car without turning the key back off, and let it log for 30-60 seconds at idle(longer if the engine is cold). Once you see the Short Term Fuel Trims change from a static 1.0, you're now in "closed loop" so we need at least 30 seconds from that point on. Once you have recorded that 30-60 seconds, slowly rev to 5000rpm over a period of 30 seconds in neutral, very slow, not quick blips. Stop datalogging (red button) and save this file (File Menu > Save Datalog As...SEE “IMPORTANT NOTES” ABOVE FOR HOW TO NAME YOUR FILE!!!)

ON A SECOND LOGGING SESSION, run the vehicle at WOT through 3 rd OR 4th not both this can be done by selecting the gear using the shifter in an automatic transmission car(15+ car must be in sport mode to hold a gear and will only hold a gear if you command that gear using the paddle shifter). MAKE SURE YOU SEE THE SHORT TERM FUEL TRIMS MOVING BEFORE YOU DO THE PULL. Don’t exceed the speed limit or break any laws while doing this, if the car has too much power for the street it should be logged on a dyno. It is critical for the car to not get tire spin during the log and that you advise us that you did get tire spin during the log, if you did(we prefer logs without tire spin). Do this from a very low RPM, about 1000, up to the vehicles rev limiter. Only send one or two short logs. If you have a wideband wired into the tuner don't forget to correctly configure the analog inputs. If you run the car on a dyno make the pull in 4 th gear starting at 1000rpm. Do not send more than two logs or repeats of the same thing. If the vehicle is boosted make sure the A/F does not go above 12.5-13.0 for more than a second while at WOT. Please note whether traction control was on or off during the Wide open throttle pulls. Save the datalogs under the File menu of Live Link and REPLY TO THIS EMAIL WITH THEM, this is important so we have all of your car and order information.

Computer Code Location

>

The "Computer Code" or "Catch Code" identifys the program that is in your vehicle's computer. When we custom program an SCT Tuner for your vehicle the code is usually required. This code is 4 letters and numbers long, an example would be "ABC1". There are no dashes before or after the computer code, it is not a part number or calibration code.

If you can not find the code go ahead and place the order, we will contact you if we need additional information. We often know the codes for common vehicles such as 03-04 Cobras and GT500s.

On 2004 and older vehicles the code can be found on a small white sticker on the passenger side door jamb or door. If this sticker is worn off you will need to look on the computer itself. On Mustangs the computer can be found behind the passenger side kick panel. On trucks the computer can be found going through the firewall on the passenger side, often the code is visible from underneath the dash. On large cars the computer can be found under the drivers side dash.

On 2005 and newer vehicles the code can be found on a small white sticker placed on the computer itself. On cars the computer is often on the passenger side front of the engine bay, on gas trucks it is on the firewall.

11-13+ have the computer in the same place as previous years, but the sticker will always be by the connectors.

The code is not part of a long part number, it will be by itself, usually in large letters. An example code is ABC1.

It is possible to find the computer code by plugging a flash tuner into the OBD2 port. When you read the code out through the OBD2 port it is called the strategy, using this method the code is 7 letters and numbers long. It can be even longer on some vehicles and include a part number, we can use that part number if there is no strategy code present.