Ford F150 P0131: O2 Sensor Low Voltage (Bank 1 -Sensor 1 Ford F150 P0131: O2 Sensor Low Voltage (Bank 1 -Sensor 1) February 1, 2019 by Jason. P0131 is a common OBDII code that occurs in many vehicles, including the Ford F150. It is letting you know that there is an issue with the wiring or harness going to the sensor, or the sensor itself is bad. this can help you determine if it’s your F150 O2 Sensor Wiring Diagram Ford F150 | Diagram Mar 31, 2019O2 Sensor Wiring Diagram Ford F150. Posted on March 31, 2019 by admin. 89 f150 wiring diagram 5 4 ms krankenfahrten de u2022 rh 2007 f150 o2 sensor wiring img 4493 jpg 2008 ford f 150 ignition wiring diagram 20 efa linda cosmetics de u2022 rh 2005 f150 for o2 sensors electrical wiring diagram explained inspirationa rv holding tank sensor.