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2006 Chevy Cobalt with error codes P0411 and P2440.

Noticed that with a previous question it is the secondary air pump. Would that be the same for the Cobalt?

Vehicle: 2006 Chevy Cobalt
asked Jul 12, 2014 by anonymous

1 Answer

P0411 Secondary air injection incorrect airflow detected

P2440 Secondary air injection system switching valve A stuck open

This is for a stuck open air check valve, what happens is it corrodes from the inside,and just got stuck when it was commanded to be open.

answered Jul 13, 2014 by Reynaldo (10,835 points)

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