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P1131 Diagnostic Trouble Code Discussion for November 2013

Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean


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Trouble Ticket Help Requests for DTC P1131
Help Request Posted
1997 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTDF1823V
P1131: Lack of switching bank one sensor one. The sensor comes on very slow, and never goes over .3 of a volt.It does not respond to carb clean when trying to force it rich. I suspect a wiring problem, pulled the harness apart and found nothing. Not ready to swap computers just yet. Thanks for the help.
November 23, 2013
1997 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTDF1823V
P1131: Lack of switching bank one sensor one. The sensor comes on very slow, and never goes over .3 of a volt.It does not respond to carb clean when trying to force it rich. I suspect a wiring problem, pulled the harness apart and found nothing. Not ready to swap computers just yet. Thanks for the help.
November 23, 2013