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P1131 Diagnostic Trouble Code Discussion for October 2014

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
2000 Ford Mustang 3.8L Stall VIN: 1FAFP4045Y
P1131: b1s1 oxygen sensor lean. need help ford experts on this electronic returnless fuel system. customer says engine intermittently almost stalls at times. has a code for lean on oxygen sensor. was about to sell a b1s1 oxygen sensor but I tested fuel pressure and on my gauge at idle is 30p...
October 06, 2014
2000 Ford Mustang 3.8L Stall VIN: 1FAFP4045Y
P1131: b1s1 oxygen sensor lean. need help ford experts on this electronic returnless fuel system. customer says engine intermittently almost stalls at times. has a code for lean on oxygen sensor. was about to sell a b1s1 oxygen sensor but I tested fuel pressure and on my gauge at idle is 30p...
October 09, 2014