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P0131

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P0131 OBD-II Trouble Code: O2 Sensor Circuit Low Voltage Bank 1 Sensor 1
P0131 code definition The P0131 code is low sensor voltage for oxygen sensor bank 1 sensor 1 or improper air fuel ratio. What the P0131 code means P0131 is telling...

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Question
Getting code P0131 rough idle, loud, and smell exhaust fumes
Hello. Codes P0456 and P0131 can come up from a serious exhaust leak. From what you are explaining, it sounds like this is the issue. The exhaust leak will need to be located and repaired before further testing. If there...
Question
Engine running rough - 2001 Ford F-150
Hi there. Have the codes returned since the repair? It sounds like the valve timing control valves are sticking. The valve timing control valves control oil flow to the valve timing actuator and are a duty cycle type controller. The...

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