@trqautoparts: Your engine doesn’t always run the same way — it switches between open loop and closed loop operation depending on conditions. In this Auto Terms Explained video, we break down what open loop vs closed loop means, when your engine uses each mode, and how sensors like the O2 sensor affect fuel delivery and performance. Understanding how engine management systems switch between open and closed loop helps explain cold starts, fuel trims, and certain drivability issues. Ready to tackle a repair? Download the TRQ app via link in bio for free step-by-step installation videos. #trq #trqautoparts

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Thursday 19 February 2026 13:24:01 GMT