Open vs. Closed Loop Explained - What You Need to Know

Open and closed loop fueling control modes in cars both play a key role in insuring the car runs reliably. In this video I discuss the difference between open and closed loop in the context of car fuel control. I talk about how various sensors such as AFR senssors, MAF, and MAP play a role in this. I also talk about the tuning implications of running the car in both modes.

This is important information to understand before you take your car in to get it tuned, and it's important to talk to your tuner about what's best to keep the car running reliably, both off and on the dyno. And especially if the car is boosted with a turbocharger or supercharger. Other topics briefly discussed include injector pulse width as well as short and long term fuel trims.

IG: @the_carizon

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