This article was adapted for drivers and tuning professionals in the United States by Viezu USA. Measurements are shown in US units alongside the originals.
Using the Map Pack We Built on a VW Golf GTI 2.0 TSI (MED17.5)
After our gasoline map pack training session in early February, Viezu is taking the next step: putting it to work on a real car.
Last time, we built a full gasoline map pack together in WinOLS5, working out the map structure, defining key calibration areas and laying the groundwork for a structured workflow.
This time, we take that very map pack and apply it live to a VW Golf GTI's MED17.5 ECU. EVC-accredited WinOLS trainer Simon White shows how it's used in practice, from ignition strategy and torque modeling to lambda control and safe, methodical editing.
Caught the last session live or on replay? This is the natural next stage in your tuning development, and you can follow along with the calibration demo and use the same workflow in your own WinOLS setup.
Watch the Recording
Watch the Golf GTI MED17.5 map pack webinar on YouTube
What You'll Learn
- Using the gasoline map pack in a live MED17 calibration
- Finding and editing ignition timing, lambda control and torque request maps
- Turning map pack structure into a real-world editing strategy
- Smoothing and verifying maps for performance and driveability
- Live technical Q&A with Viezu's calibration experts
Event page
Why It Matters
Knowing how to apply a gasoline map pack correctly in WinOLS5 is an essential skill for today's ECU tuners.
This session goes past structure and theory to show practical MED17 calibration strategy rooted in hands-on tuning experience.
Viezu works to ISO frameworks and supports more than 1,500 dealers worldwide, and our training is built on precision, safety and technical authority.
Who Should Watch?
- Tuners using or learning WinOLS
- Gasoline calibration pros
- Shop staff who work with tuning tools
- KESS3 or Autotuner users ready to move up
Why Learn With Viezu?
Viezu Technologies is one of the world's leading ECU tuning providers, with more than 500,000 tuning files delivered and 1,500+ dealers worldwide, and every session is backed by that experience.
Our Technical Academy offers hands-on training on professional tools like WinOLS, KESS3, ECM Titanium and more.
US emissions compliance note
In the United States, modifying, removing or disabling emissions-control equipment (including DPF*, EGR*, SCR*/DEF* and catalytic converter systems) on a vehicle used on public roads may violate the federal Clean Air Act and EPA rules, and in California and other states that follow CARB standards, additional restrictions apply. Any off-road, race or competition-only modification described here is not intended for street use. Nothing in this article claims that any product or calibration is EPA- or CARB-certified or street legal. For guidance on options for your vehicle, contact Viezu USA.
Talk to Viezu USA
Want to know what Viezu can do for your vehicle or your business? Request a performance upgrade quote, browse viezuusa.com or contact the Viezu USA team.
* EMISSIONS TAMPERING WARNING
Removing, disabling, deleting, or rendering inoperative any emissions control device or system (including DPF, EGR, SCR/DEF, catalytic converters, and related sensors or software) on a vehicle used on public roads is prohibited under the U.S. Clean Air Act and may also violate state laws, including California Air Resources Board (CARB) regulations. Violations can carry substantial civil penalties for vehicle owners, installers, and sellers.
Any reference in this article to DPF, EGR, SCR, or other emissions-related functions is provided for informational purposes and, where applicable, for closed-course competition or off-road use only where permitted by law. Viezu USA does not condone emissions tampering on any road-going vehicle. It is the customer's sole responsibility to ensure that any modification complies with all applicable federal, state, and local laws, regulations, and policies, regardless of what country you live in.