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P1131 Diagnostic Trouble Code Discussion for March 2012

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
2003 Ford E-150 4.2L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1FTRE14253
P1131: H02s11 sensor indicates lean. Hey Crew, Going a little bonkers. Have this van as described with codes as described. The van is relatively new to myncustomer. He says it has been running a little ruff since he got it. Vehicle would stuble under part throttle but WOT cleared it up. First...
March 06, 2012