Honda Accord

P0401

The P0401 code in a 2008-2012 Honda Accord indicates an issue with the Exhaust Gas Recirculation (EGR) system, specifically that insufficient flow has been detected.

4 SolutionsP-CodePowertrain

Error Code Type

Powertrain

Components

1 affected

Exhaust System

Symptoms

10 common

•Check engine light illuminated
•Rough engine idle
•Reduced engine power
+7 more

Most Affected Generations

3 generations

11G

CV/CR

11th Gen

Top Affected Components

1 component

Exhaust System

Severity Levels

1 level

medium

Quick Facts

Total Solutions

Affected Components

Common Symptoms

Generations

All Solutions

Showing 4 of 4 solutions for error code P0401 across all generations.

how to fix P0401 code in Honda Accord 8th Generation (2008-2012)

Exhaust System

The P0401 code in a 2008-2012 Honda Accord indicates an issue with the Exhaust Gas Recirculation (EGR) system, specifically that insufficient flow has been detected.

Check engine light illuminatedRough engine idle+3

P0401•CV/CR

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how to fix the P0401 code on my Honda Civic 11th Generation (2022-Present)?

Exhaust System

The P0401 code indicates that the Exhaust Gas Recirculation (EGR) flow is insufficient in your 11th Generation Honda Civic (2022-Present).

Check engine light illuminatedRough idle or stalling+3

P0401•11th Gen

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what does it mean if my Honda Accord has a P0401 EGR flow insufficient code

Exhaust System

The vehicle, a Honda Accord, is displaying a P0401 trouble code, indicating insufficient EGR (Exhaust Gas Recirculation) flow.

Check engine light illuminatedDecreased fuel economy+3

P0401•11G

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how to clear Honda Accord 9th Generation (2013-2017) P0401 code

Exhaust System

The Honda Accord 9th Generation (2013-2017) is displaying a P0401 error code, indicating an issue with the Exhaust Gas Recirculation (EGR) system, specifically that the EGR flow is insufficient.

Check engine light illuminatedRough idle, especially at startup+4

P0401•11G

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