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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 151 (Engine Control System - 3.8L - DTC P0451 To DTC P2120) >> DTC P1400 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Any loading of the engine that lowers engine RPM, such as with partial application of the clutch, etc. during the first 120 seconds of engine runtime may set this DTC.

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