× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0411 Diagnostic Trouble Code Discussion for May 2007

Secondary AIR System Incorrect Airflow Detected

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

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