Service engien soon light on a 1999 buick century code 401pd. Created by wanda. Cars & Trucks - Buick - Century - 1999 Buick Century

Service engien soon light on a 1999 buick century code 401pd

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January 2021 1 24 Report

Service engien soon light on a 1999 buick century code 401pd

Cars & Trucks - Buick - Century - 1999 Buick Century

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Ricky Peters

If the DTC is P0401 it means that the EGR Valve is clogged or air flow is insufficient.Take EGR valve off and clean carbon out or replace EGR valve with a new one.

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