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Home >> BMW >> 2008 >> 750Li >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P1327-U1202 (N62) >> BMW Me9.2.3 (DTC P1327-U1202) >> DTC P2196, BMW Hex Code 0x2C49, BMW Code 11337: O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1) (SIG) >> Possible Fault Causes

Possible Fault Causes

  1. LSU response curve shift toward rich side
  2. Exhaust system leak adjacent to oxygen sensor before/behind cat.
  3. Wiring harness defect on O2 sensor wires (high-resistance shunt)
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