Unveiling the Secrets of Code P0411 The Ultimate Guide

Most of the time with this code it is the check valve on the head that freezes up and won't open. Thus, when the pump runs, no flow is detected ... This seems to be a common code with the H3's. Took it to my mechanic and they recommended replacing my Secondary Air Pump, as well as my Secondary Air ... What is a P0411 code? Does this have something to do with the AIR pump? Everytime we test the car the system comes on there's power at the ... The overall code seems to be related to secondary air injection so I thought perhaps this might be the turbo diverter valve. Cooper Bearing P0411: Amazon.com: Industrial & Scientific. Processing options enable you to specify the default processing for programs and reports. Brian Hannigan I don't see anything called a fuel injection pump on any diagrams in my manual is that exactly what it's called or is it a fuel ... If the turbo bypass or over-run cut off solenoid valve does not hold vacuum it can cause a secondary air fault. It shares a manifold vacuum ... The Secondary AIR system will set code P0411 when both the AIR pump and AIR solenoid are commanded ON but the system pressure falls outside the expected 0.7-1. ... P0411 stands for “Secondary Air Injection Incorrect Flow Detected.” This code warns about a potential airflow issue in the secondary air system.