P2097 NISSAN - Post Catalytic Fuel Trim System Too Rich Bank 1
When is the code detected?The output voltage computed by ECM from the A/F sensor 1 signal is shifts to the lean side for a specified period.
P2097 Nissan DescriptionThe air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element. The sensor is capable of precise measurement λ= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide λ range. The exhaust gas components diffuse through the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative oxygen density in lean. Also this current relative hydrocarbon density in rich.
P2097 Nissan Information for specific Nissan models
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