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P1273 Diagnostic Trouble Code Discussion for September 2011

Air Fuel Sensor (Bank 1 Sensor 1) Lean Shift Monitoring

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Trouble Ticket Help Requests for DTC P1273
Help Request Posted
2004 Nissan Pathfinder Armada SE 5.6L MIL Lamp on VIN: SN1AA08134
P1273: Air Fuel Sensor (Bank 1 Sensor 1) Lean Shift Monitoring. ... light on. No drivebility issues. The code stored in memory is p1273.the freeze frame indicated that the code sets in closed loop at operating temp [...] c. Driving speed at 40km and rpm at 900. Both 02 sensors and front af sensors check out good. No exhaus...
September 23, 2011