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.
Live Q&A for Tuners With Paul Busby and Simon White: Tools, WinOLS and Next Steps
After our recent WinOLS5 webinar series, we handed the mic to tuners and took the questions they really want answered. Viezu CEO Paul Busby and Managing Director Simon White covered a practical blend of tuning questions, real shop situations, software progression and selected technical topics for developing tuners and seasoned operators alike.
It wasn't just two people talking to a camera. Between questions, Simon shared his screen at key points to show how he tackles important areas in the software, bringing the technical discussion to life.
If you've been following our webinars on building and applying mappacks in WinOLS5, this Q&A is the logical next step: answering real viewer questions, working through common sticking points and helping shape future sessions on WinOLS, ECM Titanium and StageX.
Watch the Recording
Watch the Technical Academy Live Q&A on YouTube
What You'll Learn
- Where to begin if you're serious about learning to tune and working up to WinOLS
- How building a tuning business differs from becoming a file writer or calibration specialist
- What Simon checks first when he opens and assesses a file in WinOLS
- A practical look at injector scaling and how experienced tuners start evaluating that logic
- Why some pops and bangs setups fail on modern ECUs like the MG1 BMW, even when the key changes seem to be in place
- How to approach tool choice, support and progression without getting overwhelmed
- The most common mistakes when tuners move from using file services to understanding and editing files
- How Viezu Technical Academy takes you from beginner to more advanced software skills
Why This Session Matters
Getting into tuning takes more than buying a tool and plugging into a car. The best results come from understanding the process, the software logic, the risks in the shop and the right path to progress.
This Q&A is built around the questions tuners actually ask when they want to move forward the right way, whether they're just starting out or digging deeper into the technical side. Questions on the list included:
- Where do I really start with WinOLS if I want to learn it properly?
- What is injector scaling, and how do experienced tuners begin to assess it in the software?
- Why don't pops and bangs always work on modern MG1 BMW ECUs, even after overrun and ignition changes?
- How is running a tuning business different from being a file writer?
- What are the biggest mistakes tuners make when they switch from file services to editing files themselves?
Viewers could also send in questions ahead of time, with the best picked for the live session.
Who Should Watch?
- Newcomers to the industry wanting a clearer path into software and tool selection
- Shop owners thinking about adding tuning in a more structured, professional way
- Current dealers looking to build their technical knowledge
- KESS3, Autotuner and WinOLS users after clearer direction on next steps
- Tuners who want practical answers to real-world questions, not just theory
- Anyone curious about the training paths at Viezu Technical Academy
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 is the place for hands-on training on pro tools like WinOLS, KESS3, ECM Titanium and more.
Event Details
This live session with Paul Busby and Simon White, built around real tuning questions, software progression and selected technical demos, aired on:
Thursday, April 9, 2026, 12:00 PM Eastern / 9:00 AM Pacific (5:00 PM GMT)
We chose a mix of practical and technical questions submitted by registered viewers for the live session, and other viewer questions help shape future Technical Academy webinars.
Want to go further? Explore Viezu Technical Academy training in WinOLS, contact the Viezu USA team or browse our Technical Academy courses.
Start Times Around the World
- USA – Eastern (EST): 12:00 PM
- USA – Pacific (PST): 9:00 AM
- United Kingdom (GMT): 5:00 PM
- Europe (CET): 6:00 PM
- South Africa (SAST): 7:00 PM
- Dubai (GST): 9:00 PM
- Brazil (BRT): 2:00 PM
- Australia – Sydney (AEDT): 4:00 AM
- Australia – Perth (AWST): 1:00 AM
Event page
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.
US note: Performance modifications can affect your auto insurance. Tell your insurer about any ECU tune or modification before driving on public roads.
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.