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Home >> Land Rover >> 2003 >> Range Rover >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - With Codes >> Diagnostic Tests >> DTC P1171: Lambda Control Adaption Fault Bank 1 >> Bosch ME7.2 EMS DTC P1171 - Lambda Control Adaption Fault Bank 1: Last Occurrence - Maximum Signal >> Possible Causes

Possible Causes

  1. Air leak to inlet bank 1. See step  1 under CHECK.
  2. Air leak to exhaust bank 1. See step  2 under CHECK.
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