P1284 JEEP Air Fuel Ratio Sensor 1 Rich Shift Monitoring Bank 2
– Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1
– Fuel pressure
– Faulty Fuel injector
– Faulty Air Flow Meter
– Possible rough engine idle
The Air Fuel Ratio (A/F) sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen-pump cell, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement