1999 Mustang V6 DTC P0411 - Secondary Air Injection System Incorrect Flow Explained
I'm trying to understand what the DTC P0411 code means on my 1999 Mustang V6. The diagnostic trouble code indicates 'Secondary Air Injection System Incorrect Flow'. What does this actually mean? Is it related to emissions or engine performance?
The P0411 code on a 1999 Mustang V6 may indicate an issue with the smog pump, such as failure or malfunction.