2001 Buick Century Custom 3.1L MIL Lamp on
po401 po404 can not seem to lacate problem need to get this car through inspection. Has anyone seen this problem before? please help this a good customer and a nice lady
FIX posted 1/6/2010
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Vehicle Data2001 Buick Century Custom
Trouble Codes
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Vehicle Data
2001 Buick Century Custom
VIN | 2G4WS52J01 |
Engine | 3.1 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0401 | EGR System Insufficient Flow Detected |
P0404 | EGR Control Circuit Range/Performance |