Questions tagged [p0031]

P0031 - Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)

A P0031 DTC trouble code may be caused by one or more of the following:

  • A short or open in the heater circuit in the sensor
  • A failed O2 sensor heater
  • Wiring/connectors broken/frayed leading to sensor and/or relay
  • Failed PCM/ECM
2 questions
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My car has multiple ODBII engine fault codes

2002 Nissan sentra se-r 2.5l Hope you can advice me on my car. My codes are: 0447, 1490, 0340, 0031, 0037 My symptoms: 1. Car stalls after driving for 5 minutes than cannot start for another 2 minutes than can drive fine and after 10 more…
user194076
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4
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2 answers

Car turning off everytime I idle

My car currently has multiple fault codes: P0031 - Heater control unit (HO2s) P0037 - Heater control unit P0403 - Exhaust gas recirculation P0342 - Camshaft sensor My mechanic says we will need to replace the O2 sensor and it will fix it, but…
Anand
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