![]() ![]() To be fair though, I would suggest that any high performance engine be equipped with a wide-band o2 sensor, and that this should be considered a must have. For this reason I would suggest only using closed loop o2 with a wideband o2 sensor. While closed loop o2 can be used with a narrow band sensor, its accuracy is not fine enough to consistently rely on its reading. There are two types of o2 sensors, narrow band, and wide band. This way the sensor can get an accurate reading from all cylinders of the motor. The o2 sensor is the sensor located just after the exhaust manifold where all of the exhaust gasses have been collected into a single exhaust pipe. The purpose of this article is to explain how open and closed loop o2 works and how to tune and modify these tables. Open Loop o2? How to tune and set these parametersĪ term you are bound to run across when tuning an EFI fuel injection set-up, is the term “closed loop o2”.
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