P0411 Code: Easy Steps to Solve It
The P0411 code is a diagnostic trouble code (DTC) that indicates a problem with the secondary air injection system in a vehicle. This code specifically means that the powertrain control module (PCM) has detected incorrect flow in the secondary air injection system. Understanding and resolving this issue is crucial for maintaining your vehicle’s performance and passing emissions tests. P0411 Code Meaning P0411 Code Common Causes