P0131 Diagnostic Trouble Code Discussion for March 2009
Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)
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| Help Request | Posted | |
| 1998 GMC C3500 Sierra SL 7.4L Excessive Emissions, MIL Lamp on VIN: 1GDKC34J8W P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. this truck is working me over it sets many o2 codes but will set p0137 on decel from interstate checked power and grounds and all seems well. bank one sensor 1 will drop to 0 mv on decel from highway speeds plese help any advise would be great |
March 04, 2009 | |
| 2004 Mazda MPV LX 3.0L Poor Idle Quality, MIL Lamp on VIN: JM3LW28A14 P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Input (No Inversion). car surges at idle. mil on after 2 days. seems like fan control module is going out (causes fan to fluctuate erratically) using a Solis the o2 sensors are doing nothing. Autozone sold customer new o2 sensors. I am a VW Audi tech and it has been a long time sin... |
March 04, 2009 |
