Having problems with your 2001 Oldsmobile Aurora ?

Check engine p0 412 secondary air injection system valve malfuntion how do I fix it. I already chaneged the air pump (used one), but still the check engine is on. Aurora 2001

Posted / edited by AnonymousUser on : 26-09-2022

Answers :

The check engine light will not go off by itself,it has to be turned off with a scan tool or once it passes the test for so many ignition cycles the light will go off by itself.Unless the problem was not the pump.Hope this helps.Good luck.
Why would you change the air pump? Did you test or change the valve/switch,that is giving you the code?
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