16806/P0422/001058

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16806/P0422/001058 - Main Catalyst: Bank 1: Efficiency Below Threshold

Possible Causes

  • Oxygen Sensor(s) defective
  • Oxygen Sensor(s) Control defective

Possible Solutions

  • Check Oxygen Sensor(s)
  • Check Oxygen Sensor(s) Control
  • Perform Oxygen Sensor(s) Aging Check
  • Set Readiness

Special Notes

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