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P1273 Diagnostic Trouble Code Discussion for May 2016

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


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Trouble Ticket Help Requests for DTC P1273
Help Request Posted
2005 Nissan Titan LE 5.6L MIL Lamp on VIN: 1N6BA07A95
P1273: Air Fuel Sensor (Bank 1 Sensor 1) Lean Shift Monitoring. ... the SES light on. I repaired an EVAP leak but the other two codes were P0420 and P0430 for the cats. I told the customer to get new cats installed and then it should pass inspection. They returned to me the next day with only one new cat and a SES light on...
May 05, 2016