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P1273 Diagnostic Trouble Code Discussion for March 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
2004 Nissan Murano SL 3.5L MIL Lamp on, Lean Bank 1 VIN: JN8AZ08W84
P1273: A/F Sensor 1 bank 1 indicates lean. ... engine light on. pulled codes found a p1273(af sensor 1 b1 indicates lean). freeze frame told me engine warm moving around 10mph. tryed to recreate problem with no luck. smoked intake found a manifold runner controler seal with slight leak. If propane or c...
March 04, 2009