Originally posted by Evil D
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Perhaps the previous owner stuffed a rag into that hose to prevent this oil buildup. It sounds as if you have a lot of blowby. If, after removing that stuffing, you see a lot of oil pooling in your air intake, that would tend to confirm my suspicion.
As to whether this could have caused the problems you have been having, I'm not sure. When members have reported oil pooling in their intake, there didn't seem to be any functional problem associated with it. They just didn't like having to clean it up. But blocking the air flow into the crankcase ventilation system is another matter. I can imagine the pressure built up could force more air through the PCV and thus reduce the normal vacuum level at all times the engine is running. It would depend on what effect that artificial level might have on the decisions of the ECU. I don't know enough to hazard a guess about what this might mean.
If your problems go away, then I would say the cause was probably related to that stuffing.
John Gunn
Coronado, CA
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