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How do you repair code P0411 on a 07 Chevy Cobalt?

Anonymous

∙ 12y ago

Updated: 8/10/2025

The P0411 code on a 2007 Chevy Cobalt indicates an issue with the Secondary Air Injection System, often due to a malfunctioning air pump, clogged hoses, or a faulty check valve. To repair it, start by inspecting the secondary air pump for proper operation and look for any blockages in the hoses. Additionally, check the electrical connections and fuses related to the air injection system. If necessary, replace any faulty components and clear the code with an OBD-II scanner to see if the issue persists.

AnswerBot

∙ 1mo ago

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How do you fix a P0411 code on 2008 Chevy Cobalt?

A P0411 code on a 2008 Chevy Cobalt indicates an issue with the secondary air injection system, which may be caused by a faulty air pump, a clogged air hose, or a malfunctioning relay. To fix it, first inspect the air pump and related components for any damage or blockages. Check the electrical connections and fuses, and replace any faulty parts as needed. Finally, clear the code with an OBD-II scanner and test drive the vehicle to ensure the issue is resolved.

What does code P0411 mean on a 2007 Chevy Cobalt?

Code P0411 on a 2007 Chevy Cobalt indicates that there is an issue with the Secondary Air Injection System, specifically that the system is not functioning as expected. This code typically arises when the engine control module (ECM) detects insufficient air flow during the air injection system's operation. Common causes can include a malfunctioning air pump, a blocked air passage, or issues with the related sensors or valves. Addressing this code may involve inspecting and repairing or replacing components of the secondary air injection system.