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P0411 Diagnostic Trouble Code Discussion for May 2007

Secondary AIR System Incorrect Airflow Detected


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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
1999 Cadillac Catera 3.0L Surge VIN: W06VR52R3X
P0411: Secondary Air System Malfunction. tested relay and fuse, jumped relay works fine. disconnected vacumm solenoid, verified vacumm and air flow. Jumped relay again and verified air flow to engine by 02 stats. snap-on mt2500 no ability to activate from scanner. Intermittently hear sec AIR motor ru...
May 10, 2007
1999 Volkswagen Beetle GL 1.8L MIL Lamp on VIN: 3VWDD21C8X
P0411: evap. faulty purge flow. ... after two or three drive cycles. It usually sets the p0441 [faulty flow] first [after 3-4 drive cycles] and the p0455 [large leak] code several days later. We inspected all the hoses carefully and also the canister but could find no obvious problems. Teste...
May 29, 2007