When you plug an OBD2 scanner into your vehicle, you’re opening a window into its operational heart. Among the myriad data points displayed, one often catches the eye and sometimes raises questions: “Load Pct.” It’s a metric that, at first glance, might seem a bit abstract, yet it provides crucial insights into how hard your…

You’re under the hood, OBD2 scanner in hand, trying to diagnose a mysterious engine light or a performance hiccup. As you scroll through the live data stream, a parameter catches your eye: “SPARKADV.” It might show a fluctuating number, or perhaps it’s surprisingly steady. You know spark has something to do with combustion, but what…