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S4 (B6 & B7 Platforms) Discussion Discussion forum for the B6 Audi S4 produced from 2003-2005 And B7 Audi S4 produced from 2005 -2008

secondary air injection issue

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Old 11-20-2011, 02:02 PM   #1
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Join Date: Dec 2005
Posts: 33
Default secondary air injection issue

Recently, my S4 (B6, 2005-early-year-model, 110k miles) gave me ECL code that said catalytic converter (bank-2) failed. So I went to an indy-shop to replace it at the cost of $1500.
After that pricey repair, now I have another ECL code that says "secondary air injection level (bank 1&2) has reached its lower limit." The mechanic at the indy-shop told me that I may ignore that error code because it is only about the engine cold start. He also said that error code is very common in many Audis'.

However, I really concern if it would be ok to drive with that, because it is a part of exhaust system of the engine. I think it has to be fixed eventually. But this time, I'd like to spend some time to do more research to root cause the issues that I am having or will potentially have soon.

So the question is, would it be ok to drive with this problem for a while? Or is it a critical issue that I should fix this immediately?

Many thanks to you in advance.
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Old 11-20-2011, 02:02 PM
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06, 2005, a3, air, audi, b6, exceeded, fix, injection, limit, problem, removal, s4, secondary, system

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