Oil in the IC tubes is normal to an extent, its from the CCV vapors. You can do a CCV mod and vent it to air, which helps keep the Intercooler clean and the turbo boot oil free.
I would check your ICP sensor, (top front of the drivers head) unplug it and check to see if there is oil in the connector. The IPR is just to the left of the ICP sensor, mounted to the bottom of the High pressure oil pump. You can remove it and clean it, rather then replace it.
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