Illuminating P0411 The Comprehensive Troubleshooting Tool

The problem was found by actually disconnecting hose after hose and blowing smoke down them until we found the culprit. P0411 ERROR CODE: MEANING, SYMPTOMS, CAUSES AND SOLUTIONS (Secondary Air Injection Incorrect Flow). In this video, we will discuss how to ... P0411 CEL - Secondary Air Injection ... I've tried replacing the smog/air pump and confirmed that it works but still getting the codes. I've read ... P0411 Code: Secondary Air Injection Incorrect (OBD-II). Jump to Latest. The SAP failure seems common in these cars for a number of reasons but carbon buildup seems to be what starts to wear on the components. I belive it is the dreaded C-word. Basically your pre-cat O2 sensors are telling the computer that they are not detecting enough oxygen on COLD ... Equinox & Terrain - P0411 - I have a p0411 code and it comes up as secondary air injection. I pulled the air pump and hooked it to 12 volts ... The car will run approximately 20 to 30 minutes and will start to shake and shut off. We replaced the throttle body due to launch scanner stating it was ... I would start by checking for vacuum leaks going to the combi valve, FPR, any under the intake manifold. If you think the SAI is leaking. Here's ... It used to be this code was set if if I had two consecutive cold starts in 20 degree Fahrenheit or below weather. No big deal.