Blue Smoke - Identifying Problem

[DogsRule]

There is oil at both ends of the intercooler from the turbo to the intake. There is also oil in the PCV line.
I'm trying to locate the PCV valve and figure out how to swap that out. Any tips on that?

IIRC, these large tubes used quick-connect spring clamps, not screw clamps. So... someone's been screwing with this issue before you? Tore it down, and buttoned it back up for the next owner.

And it does sound like the turbo's seen much better days.

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[Heimkehr]

I'm curious what advice you all have about the cat. Clearly there's been a bunch of liquid oil through it that was dumped directly into the exhaust from the turbo...

But... Cats are not cheap, especially in Colorado where they have to comply with CA regulations which basically means OEM only. And I have no codes that would seem to relate to O2 sensors or cat damage.

You might've answered your own question in the quoted post. If you're subject to a compliance check, and/or can be dinged for stored diagnostic error codes via an annual state inspection, then you might consider replacing the cat 1 for 1 with an OEM piece. Even if done just as a prophylactic measure, you'd have the peace of mind of knowing that you paired a correctly functioning turbocharger with an intact and important exhaust system component.

 

[The Fixer]

The cats probably ~should~ be replaced, but since they're downstream, you might want to try running it first with just the new turbo and see how it behaves.

If the turbo failure was recent, the cats might be OK. If they're plugged or failed, you'll get new codes once you get it drivable again. Are the O2 sensors really nasty/oily looking?

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