Cracking the Code P0411 Troubleshooting Simplified

IIRC the point of the air injection pump is to more rapidly heat up the catalytic converters. Running fuel rich produces a cooler exhaust, not a ... The 4mm inside diameter vaccuum hose gets pinched between the lower intake manifold and the secondary air pump housing, flattening it over time. P0411-secondary air flow incorrect. System design: Service info pressure specifications are in kpa. The secondary air system consists of the air ... Due to the possibility of the faucet being a "customized build" product, the user is responsible to first compare the existing cartridge needing replacement ... DTC Code P0411 indicates an issue with the Secondary Air Injection System, specifically an Incorrect Flow Detected. This code is triggered when the Engine ... A6 / S6 (C5 Platform) Discussion - P0411 code question - The code says its to do with secondary air flow being incorrect. A common issue with GM, VW and Audi vehicles are air injection flow codes like p0410, p0411, and p0412. This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. I did a search on this code (P0411) on the forums and came up with "secondary air injection system incorrect flow". Now some guys said to disconnect the wire ... Here's how the system works, the pump pulls in fresh air when the car cold starts and feeds it through the lines and the vacuum controlled diverter valves.