Tuning How To: Data Log

DATA LOGGING 101

BY INTEGRATED ENGINEERING

One of the best features of IE's PowerLINK cable is the ability to data log your IE-tuned VW or Audi with ease in order to verify the health of your engine. Nothing is better than the piece of mind that comes with knowing your investment is operating optimally.

This article will walk you through the process of data logging your car using your IE PowerLINK and Flash Wizard software.

Getting Started with Data Logging: Steps to Follow

Step 1

Connect your IE PowerLINK cable into the USB port on your Windows-powered laptop or tablet. Plug the Powerlink into your car's OBD2 port and turn on the ignition (without starting the vehicle). Verify you have a solid internet connection, and launch the IE Flash Wizard software.

Note: Our software engineers are always rolling out new versions of the software packed full of updates, make sure your software and drivers are up to date anytime you open the IE Flash Wizard software.

Step 2

On the Flash Wizard home screen, press the "Extras" button, then "Data Log". Start the vehicle's engine.

Note: The extras screen has multiple options depending on the engine. We will cover more of these in future videos.

Step 3

The Data Log screen will display your vehicle's available log parameters and display live data.

Notice the Stop button is grayed out, and the bottom right hand of the screen will display "Not Recording." This screen is only displaying live data and NOT actually logging or saving to a file yet. To begin your log, click START.

A NOTE ON LOG DRIVING TECHNIQUE

The type of driving during a data log will vary depending on what you’re diagnosing/verifying. The best data log is as short as possible during the anomaly you are attempting to record. The most common data log an IE calibrator will ask for is a single gear pull. We suggest if you have a six speed transmission to use third gear and if you have a 7 or more speed transmission to use the fourth gear for your pull.

While driving in the suggested gear, allow engine speed to drop to 2000 RPM.

Press start and perform a WOT (Wide Open Throttle) pull to redline.

Pull over safely, press stop, then save.

Notes: If you have an automatic transmission use the manual or Tiptronic mode for your log. Ensure to not activate the kickdown switch if this feature is equipped on your car.

A dynamometer or closed race course is required to safely perform data logging.

Step 4

Once you've completed your data log and pulled over to a safe location, click Stop, and then Save.

Note: Once you've selected stop you'll see the Start button has become green again, and the bottom right hand corner of the screen will say "Not Recording"

Step 5

Upon clicking save, FlashWizard will prompt you with a save location window. Your data log save name will default to the current date. We suggest you rename the data log to something you'll be able to identify later should you ever need to reference it again.

You have now completed your data log. If this is for personal reference, the log file is compatible with many specific log reader websites such as Datazap. If your log file was requested by our tuning support team, upload the file as-is and email the log to: tuning@performancebyie.com

DATA TUNING SUPPORT

If you are exploring your data log and have questions or concerns, our team of IE horsepower specialists is here to help. Please visit our Contact Page and fill out the "Tuning Support" form to create a support ticket.

Data Logging FAQs

What is a datalog?

A datalog is a recorded file of real-time engine parameters such as boost pressure, air-fuel ratios, ignition timing, and more. It allows tuners and enthusiasts to analyze engine performance under different conditions.

Are data logging and data tuning the same thing?

No. data logging is the process of recording engine data, while data tuning is adjusting ECU parameters based on that data to optimize performance.

What is datalogging used for?

Datalogging is used for:

  • Verifying ECU tuning
  • Troubleshooting engine issues
  • Ensuring proper air-fuel ratios and ignition timing
  • Optimizing performance for fuel types and hardware changes

What is the log of data?

A log of data refers to the recorded values of various engine parameters over time. This information helps diagnose problems, optimize tuning, and ensure the engine is operating safely.

What does a datalog show?

A datalog displays key engine metrics such as:

  • Boost pressure
  • Fuel trims
  • Ignition timing
  • Knock retard
  • Intake & exhaust temperatures
  • Throttle position

This information is crucial for fine-tuning an engine or diagnosing potential issues.

FINAL THOUGHTS

Data logging your vehicle is a powerful tool that can collect a wide range of data from your factory ECU. This can be used to verify engine safety when mixing or trying new octanes, adding hardware, diagnosing engine hardware issues, or verifying proper software functionality.

Data logging is just one powerful feature included with your IE PowerLINK tool, explore other articles to learn more features included with your IE Tuning system that will help you dial in your build for the street of track!

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