What the problem about po401?

Updated: 4/28/2022
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13y ago

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The code means EGR Insufficient Flow. This does NOT necessarily mean that the EGR needs to be replaced, but there is a problem with it. Take it to a respectable mechanic and have your car tested. Only a service professional who is inspecting your car will know what exactly needs to be replaced.

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13y ago
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Q: What the problem about po401?
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