Conquering P0411 The Definitive Troubleshooting Guide

DTC Code P0411 indicates an issue with the Secondary Air Injection System, specifically an Incorrect Flow Detected. This code is triggered when the Engine ... OBD-II code P0411 means you've either put the one-way valve backwards, have a leak or loose vacuum hose or routed them incorrectly. We show you info about the secondary air system and components on VW 2.5L 5 Cylinder engines. Like most other monitors, a secondary air monitor DTC only sets after failure on two consecutive trips. Maybe one of your diverter valves is ... My check engine light is on. The computer showed a trouble code P0411. I need to know what caused it and what I can do to fix the problem. It happens in the morning after pulling out of driveway. I replaced the vacuum lines to the canister, and this is not the infamous gas cap code. Otay.....I checked my CEL. It was a "P0411 Secondary Air Injection System Incorrect Flow Detected" I assume this means there's air getting ... 98 Taurus, 6cyl, 3.0L OHV, 184K miles. Check engine light is on and code reads "P0411 - secondary air injection system - incorrect flow". Performed output test of components (air pump and valve that directs air to exhaust) for SAI successfully. This is a 1- bank system. The P0411 code is set, it means that the PCM doesn't detect an appropriate drop in the voltage from the O2 sensor, which would indicate air being injected into ...