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P1273 Diagnostic Trouble Code Discussion for February 2009

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

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Trouble Ticket Help Requests for DTC P1273
Help Request Posted
2000 Nissan Sentra GXE 1.8L Excessive Emissions, MIL Lamp on, fails CA smog test VIN: 3N1DB51D8Y
P1273: fuel air metering/ A/F sensor1b1. ... involved. I have this Sentra that came in with a MIL on and would not pass smog inspection. Initial checks indicated multiple codes. P1138 fuel air metering/swirl control valve-P1273 fuel air metering/air fuel sensor1 (B1)-P0128 coolant below threshold Ini...
February 12, 2009