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P1131 Diagnostic Trouble Code Discussion for May 2006

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
2002 Ford Thunderbird 3.9L Hesitation VIN: 1FAHP60A02
P1131: o2 sesor ckt lean. hello all, this car bogs and hesitates on acell, idle is ok.fuel pressure reads 32psi at idle and 38psi on acell.spec for this thing is 39-65psi.what a large range isn"t it? i installed 2 fuel pumps,one on either side of the tank.same thing.oh i replaced f...
May 20, 2006