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Home >> Buick >> 2005 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.6L (Ly7) (DTC P1845 To P2229) >> Diagnosis >> DTC P2178 >> DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P2178 Fuel Trim System Rich at Cruise or Accel

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