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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System & Fuel System - 3.6L - DTC P2231 To P2626) >> DTC P2297 >> Conditions for Setting the DTC >> Condition 1

Condition 1

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The ECM detects that the internal HO2S signal voltage is more than 3.7 volts for more than 4 seconds.