When you operate the motorcycle at a constant speed (constant load, constant throttle), the ECU switches to closed-loop mode.
In open loop mode, the engine doesn’t listen to nobody, it just runs off a set of instructions based on where the throttle is at, where the revs are, and so on. In a nutshell, closed loop is where the engine operates with a feedback loop. Fuel-injected engines - basically, most motorcycles since the mid-2000s (and almost all that I buy) that have sensors and fuel controllers. Sign up Open Loop vs Closed Loop in a nutshellĬlosed and open-loop conditions apply only to fuel-injected engines.