https://vetuner.co.uk/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/og-image.svg Introduction VETuner is a browser-based ECU tuning application for Speeduino and MegaSquirt. Connect over USB, edit VE tables, analyse logs, and tune your engine; no software installation required. https://vetuner.co.uk/adv-closed-loop/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg Closed-Loop Fuel Control How narrowband and wideband closed-loop fuel correction works, when to use it, trim limits, and why it is not a substitute for a well-tuned VE table. https://vetuner.co.uk/adv-data-logging/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg Data Logging for VE Analysis How to gather clean, useful data for VE table correction. Drive technique, coverage, sensor requirements, and what to avoid. https://vetuner.co.uk/adv-fuel-equation/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg The Fuel Equation How a speed-density ECU calculates injector pulse width from VE, MAP, RPM, injector size, fuel pressure, and correction factors. https://vetuner.co.uk/adv-ignition-theory/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg Ignition Timing Theory MBT timing, knock, dwell, and how ignition advance affects power, fuel economy, and engine safety. What the ignition map does and how to approach tuning it. https://vetuner.co.uk/adv-lambda-afr/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg Lambda and AFR Lambda, air-fuel ratio, stoichiometry, and fuel-specific values for petrol, ethanol, and E85. How wideband sensors work and how to read them. https://vetuner.co.uk/adv-ve-theory/ 2026-04-23 weekly 0.5 https://vetuner.co.uk/og-image.svg Volumetric Efficiency Theory What volumetric efficiency is, why it matters for EFI fuelling, and how the VE table models it across the engine's operating range. https://vetuner.co.uk/connecting/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/og-image.svg Connecting to Your ECU Connect VETuner to your Speeduino or MegaSquirt ECU over USB using the Web Serial API. Supports live data streaming, automatic ECU detection, and file-only offline mode. https://vetuner.co.uk/privacy/ 2026-04-23 monthly 0.4 https://vetuner.co.uk/og-image.svg Privacy Policy VETuner privacy policy - what data we collect, how it is used, and your rights. https://vetuner.co.uk/start-doctor/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/images/start-doctor-dashboard.svg Start Doctor dashboard during a cranking consultation https://vetuner.co.uk/images/start-doctor-cards.svg Diagnostic cards showing all four status states https://vetuner.co.uk/images/start-doctor-thresholds.svg Threshold override drawer showing all configurable groups https://vetuner.co.uk/start-your-engines/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/og-image.svg Starting Your Engine The First Time Get started with VETuner - First Crank to First Idle. https://vetuner.co.uk/terms/ 2026-04-23 monthly 0.4 https://vetuner.co.uk/og-image.svg Terms of Service VETuner terms of service - conditions of use, liability limitations, and your responsibilities. https://vetuner.co.uk/tuning/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/og-image.svg Editing Tuning Tables Edit VE tables, ignition advance maps, AFR targets and more with VETuner's interactive table editor. Colour-coded heat maps, undo support, and direct burn-to-ECU. https://vetuner.co.uk/ve-analysis/ 2026-04-23 weekly 0.6 https://vetuner.co.uk/og-image.svg VE Analysis Automate VE table tuning with VETuner's analysis tool. Record a drive log, compare actual vs target AFR, and calculate per-cell VE corrections with O2 sensor delay compensation. https://vetuner.co.uk/vetuner-pro/ 2026-04-23 weekly 0.9 https://vetuner.co.uk/og-image.svg VETuner Pro VETuner Pro unlocks Advanced Mode - real-time graphing, tooth logger, full ECU menu, log recording, tune diff reports, and premium gauge designs. Subscribe from within the app. https://vetuner.co.uk/app 2026-04-23 daily 0.7