P0131 Diagnostic Trouble Code Discussion for April 2016
Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)
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| Help Request | Posted | |
| 2004 Buick Rendezvous CX 3.4L MIL Lamp on VIN: 3G5DB03E04 P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. This van intermittently sets code PO131 for #1 O2 sensor low voltage.It usually takes around 6000 miles to do it.Everytime I check it out the sensor is working good and van is not running lean.Freezeframe data shows it happening at highway speed with coolant t... |
April 18, 2016 |
