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2022 CHEVROLET BOLT EUV
65 kWh Single Motor FWD•FWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor314Torque3680Fluid5DTC1306Battery1Maintenance0Recalls4
P0164moderate severityPowertrain

O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)

on 2022 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD

What this code means

The PCM detects a persistently high voltage signal from bank 2, sensor 3 oxygen sensor. This may point to a rich condition or a wiring fault.

Symptoms

  • Check engine light on
  • Rough idle
  • Failed emissions test

Common causes

  • Faulty oxygen sensor
  • Short to voltage in wiring
  • Contaminated sensor
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes and freeze frame
  2. Check O2 sensor signal voltage
  3. Inspect wiring for shorts to power
  4. Replace oxygen sensor if needed
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