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Seondary air system (bank1) and (bank2) ? definition?

Caruso39
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grover Member

grover

Posted
Posted (edited)

Those are generic codes the computer will throw when it doesn't see the proper response from the O2 sensors for the ~30 seconds after you start the car when the secondary air injection is supposed to be running. If you're getting codes for both banks, it means it's affecting both sides, and thus likely something both sides have in common. I had a simple vacuum leak cause the codes (I'd knocked a line loose changing my AOS), but it could be an issue anywhere in the secondary air injection system.

Edited by grover
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