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Home >> Land Rover >> 2000 >> Range Rover Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - With Codes >> Diagnostic Tests (BOSCH) >> DTC P0170, P0171, P0172, P0174, P0175, P1171, P1172, P1174, P1175: Fuel Trim Malfunction, System Too Lean Or Rich >> Diagnostic Aids

Diagnostic Aids

  1. If DTC P0170 is set, there is a fuel trim malfunction at Bank 1.
  2. If DTC P0171 is set, system is too lean at Bank 1. There is an additive or multiplication injector adaptive fueling malfunction indicated by an exceeded lean limit.
  3. If DTCP0172 is set, system is too rich at Bank 1. There is an additive or multiplication injector adaptive fueling malfunction indicated by an exceeded rich limit.
  4. If DTC P0173 is set, there is a fuel trim malfunction at Bank 2.
  5. If DTC P0174 is set, system is too lean at Bank 2. There is an additive or multiplication injector adaptive fueling malfunction indicated by an exceeded lean limit.
  6. If DTC P0175 is set, system too rich at Bank 2. There is an additive or multiplication injector adaptive fueling malfunction indicated by an exceeded rich limit.
  7. If DTC P1171 is set, system is too rich at Bank 1. There is an additive injector adaptive fueling malfunction indicated by an exceeded rich limit.
  8. If DTC P1172 is set, system is too lean at Bank 1. There is an additive injector adaptive fueling malfunction indicated by an exceeded lean limit.
  9. If DTC P1174 is set, system is too rich at Bank 2. There is an additive injector adaptive fueling malfunction indicated by an exceeded rich limit.
  10. If DTC P1175 is set, system is too lean at Bank 2. There is an additive injector adaptive fueling malfunction indicated by an exceeded lean limit.
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