P0131 Diagnostic Trouble Code Discussion for November 2009
Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)
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| Help Request | Posted | |
| 1999 GMC Sierra 1500 SLE 4.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GTEC14W9X P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. interpeted fuel trims as -13 stayin open loop longer than usual o2s never been changed ,maf normal shows good on brick,o2s switching , looks normal but see codes above don``t want to r and r o2s want to be sure any help would be apprecm thanks paul |
November 14, 2009 | |
| 1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMRU17LXX P0131: b1s1 volts low. vehicle came in with p0131 o2 volts low, 171 and 174 lean b1/b2. found b1 sensor unplugged. plugged it in, scanned, found lt trim b1/b2 +20% idle and +5-7% at 2500rpm's. maf read 4.6 KPa at idle. smoked system, found iac and pcv actively leaking. replaced maf,... |
November 15, 2009 | |
| 2006 Dodge Ram 1500 ST 4.7L Excessive Emissions, Cuts out, Misfire, MIL Lamp on VIN: 1D7HA18N96 P0131: B1S1 low voltage. hey guys, got this dodge pick up that a friend of mine has in his shop. customer was having problems with it and decided to fix it himself. he was having misfire and hesitation issues with it and decided to throw new plugs and all new coils at it. my friends s... |
November 20, 2009 | |
| 2006 Dodge Ram 1500 ST 4.7L Excessive Emissions, Cuts out, Misfire, MIL Lamp on VIN: 1D7HA18N96 P0131: B1S1 low voltage. hey guys, got this dodge pick up that a friend of mine has in his shop. customer was having problems with it and decided to fix it himself. he was having misfire and hesitation issues with it and decided to throw new plugs and all new coils at it. my friends s... |
November 21, 2009 |
