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AOS Oil
Hi guys,
I recently replaced the air oil separator, which I believed to be original. When I replaced it, there was a lot of oil in the intake manifolds. After three months, there has been no smoke or anything, but while troubleshooting the P1128 and P1130 codes, I found a thin film of oil in the intake manifolds, more oil on the rubber boots, and a few drops of oil on the engine below the boots. My question is, if the AOS is working properly, is there supposed to be no oil at all in the intake?
Background info:
2001 Base, 127k miles, has had codes P1128, P1130, P0410, P1411 for a while.
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