Knock Retard
Ignition
ignition timing pulled back to prevent knock — When knock sensors detect detonation, the ECU pulls back ignition timing (e.g. -2°, -4°, -6°). Visible in datalogs as KR or knock retard. Persistent knock retard means tune is too aggressive or fuel is bad.
Tune Knock Retard with DaVinci Deluxe
Professional ECU tuning software. From €45.99 (24-Hour Pass), €100.99/month or €1009/year — or test it first with the Real Software Test: €9.99 for 7 days, then €100.99/month unless you cancel in one click.
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