× 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 February 2014

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 Ford Mustang 3.8L MIL Lamp on VIN: 1FAFP4043X
P0411: Secondary AIR System Incorrect Upstream Flow Detected. ... for P0411. Check relay, okay, check air injection bypass solenoid okay, Vehicle idling, ground eair monitor wire and air pump and air bypass solenoid working, 02 sensors are seeing lean during Bypass operation, but according to Mitchell on Demand it's supp...
February 24, 2014