P1131 Diagnostic Trouble Code Discussion for April 2010
Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean
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| Help Request | Posted | |
| 2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU60E31 P1131: lack of o2 switching b1s1 system lean. i smoked the car and found the intake leaking and repaired tat and the codes came back after a test drive has anyone seen this before oh yea another shop has tried to fix this |
April 08, 2010 | |
| 2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU60E31 P1131: lack of o2 switching b1s1 system lean. i smoked the car and found the intake leaking and repaired tat and the codes came back after a test drive has anyone seen this before oh yea another shop has tried to fix this |
April 09, 2010 |
