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P1131 Diagnostic Trouble Code Discussion for July 2005

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 Taurus GL 3.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1FALP52U7V
P1131: insuff switching control valve sensor / lean. I have scanned, all those before mention codes.. AC most likely low on 134a I don't need help with that issue. I can hear what sounds like a vacuum leak. Ran out of time so I have not put a gauge on in and have not looked at all the the data when I scanned it ...
July 09, 2005