Narrowband O2 Sensor(s)

Narrowband O2 Sensor(s)

Narrowband O2 Sensor

A Narrowband O2 sensor can be used by the ECU for monitoring purposes, or for closed-loop O2 Control. A narrowband sensor by definition measures only a narrow section of the AFR scale. It is designed to allow the AFR to be oscillated around stoic (approx. 14.7:1 AFR-Petrol) to improve exhaust catalytic converters to operate more efficiently. Narrowband O2 sensors are not ideal for engine tuning other than for emissions purposes. A Wideband O2 Sensor is a more suitable choice for that application.

Note: Your ECU can accept up to 2 individual Narrowband O2 inputs. This article is appropriate for all Narrowband sensors.



This node sets the upper voltage limit for any gauges that are displaying the Narrowband O2 voltage.

Diagnostics



Minimum Value - When enabled, and the Narrowband O2 Voltage drops below this amount, a corresponding DTC is flagged. DTC Severity sets the level of severity triggered by the DTC.
Maximum Value - When enabled, and the Narrowband O2 Voltage exceeds this amount, a corresponding DTC is flagged. DTC Severity sets the level of severity triggered by the DTC.

Wiring



This node allows you to assign the input for the Narrowband O2 sensor. 
Narrowband O2 Sensors use an Analog Input. Any available AVI can be used.
It is recommended to disable the Pull Up.


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