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P1273 Diagnostic Trouble Code Discussion for August 2004

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 Ford F-350 Super Duty Lariat 7.3L Excessive Emissions, Poor Idle Quality VIN: 1FTWW33F4Y
P1273: Cylinder 3 - High To Low Side Open Detected. I checked resistance at the 42 pin conn and the injector seems to be in range. wiggled the wirring while watching the resistace is constant at 3.6 ohms. when i do a cyl contibution test i shows that cyl 8 is not contributing equally. code p0284. I would like a...
August 25, 2004
2000 Ford F-350 Super Duty Lariat 7.3L Excessive Emissions, Poor Idle Quality VIN: 1FTWW33F4Y
P1273: Cylinder 3 - High To Low Side Open Detected. I checked resistance at the 42 pin conn and the injector seems to be in range. wiggled the wirring while watching the resistace is constant at 3.6 ohms. when i do a cyl contibution test i shows that cyl 8 is not contributing equally. code p0284. I would like a...
August 25, 2004