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P0411 Diagnostic Trouble Code Discussion for June 2012

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2007 Buick Lucerne CXL 3.8L MIL Lamp on VIN: 153GS83JL7
P0411: Secondary AIR System Performance. this car is kicking my butt it came in with a code po411 incorrect air pump flow i checked the air pump to make sure there was no water in it then i could operate it with the scanner pump worked very well i checked all the hoses for cracks did not see any next...
June 27, 2012