Well, changing the O2 sensors did not solve the P0410 and P1411 codes as many said it wouldn't.
So let me ask another question. I've looked at the secondary air system diagram and all parts are new and the hoses don't have vacuum leaks. So if a leak isn't there, where might I look to see where else can it be? I'm guessing that the vacuum is created in the intake manifold. What lines or other systems link to the secondary air system to provide vacuum there. I've replace the AOS as part of my CEL odessy.
Thanks
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