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Home >> BMW >> 2010 >> 535i Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - Diagnostic Trouble Codes - DTC P150A - U1166 (N54) >> BMW MSD80 >> DTC P2297, BMW Hex Code 0x2C2D, BMW Code 11309: O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1) (MAX) >> Repair procedures (plant/service)

Repair procedures (plant/service)

  1. Visual inspection of wiring and plugs (water or corrosion in plug?) 1a. Repeatedly remove the plug and then FIRMLY insert it again.
  2. Electrical check of wiring.
  3. Check catalytic converter (FSD lean fault may be entered for the other bank).
  4. Piston rings, injector valves, positive crankcase ventilation OK? FSD fault? Then continue there!
  5. Replace wires or plugs on O2 sensors as indicated.
  6. Replace O2 sensor.
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