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P0411

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P0411 OBD-II Trouble Code: Secondary Air Injection System Incorrect Flow Detected
P0411 code definition The P0411 DTC is a generic OBD-II code that points to a malfunction within the secondary air injection system. What the P0411 code means P0411 indicates that the...

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Question
Diagnostic code P0411
A code P0411 indicates a secondary air injection system incorrect flow has been detected. This is essentially a system of flushing clean and fresh air into the exhaust system in order to keep the catalytic converter working at its best....
Question
Secondary air injection
Hi There, As you may know, the purpose of the secondary air injection system is to inject more air into the exhaust system at cold start to help light the catalyst material inside the catalytic converter quicker. The reason for...

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