Hey folks-strap in for this one, it's probably going to be a long ride.
I initially started a post at the Outback forums but it seems this is really the place to be for a turbo model.
Purchased this car a couple months ago, started work on it, then got into a motorcycle accident so I'm just getting back to it now.
Here's the rundown:
PO decided to sell it because after two turbo replacements and an engine replacement with a used DOHC, it was still having issues.
Initial Turbo failed. It ate the engine. The engine and turbo were replaced around 140K. Couple hundred miles down the road, the new turbo starts being a jerk. Turbo found to have defect and replaced under warranty. 100 miles later, it's having major problems. The most recent paperwork stated some codes relating to the tumbler valve and the same shop that did the work previously suggested a complete engine teardown again. Understandably, the PO said no way to that and then it sat for many months.
The PO advertised it as probably needing a IACV or spark plug change, etc. The battery was stone cold dead so any previous codes are gone (battery replaced with new recently). Upon pickup, the car started but I was hearing a whine from what I believe to be the turbo, some popping/backfiring sounds under the hood area, some smoke out the exhaust, and an incredibly rough idle and a consistent stall. I have not tried driving it on the road as I'm afraid it'll do damage to an already possibly damaged engine.
The only codes I am now able to pull are two identical generic P0036's. I noticed there's an empty electrical connector near the wiring harness as well. (fixed, O2 sensor had been unplugged, not throwing any codes now-unfortunately)
I also found one loosened bolt on the front passenger side of the intake. I'll be tightening that once I clean my garage from the 05 RS I just redid for a friend.
My deal: I've done about a dozen headgasket jobs along with clutches, exhaust, brakes, etc. I can do a NA Subaru motor in my sleep at this point. I've NEVER worked on a turbo before so I'm a little lost as to what is what on this vehicle.
I understand there might be a TGV issue, an OCV issue, a IACV issue, a fouled plug issue, a turbo issue (again), and possibly an entirety of the engine issue.
Where do I start?
In the meantime, I purchased this and did the solder job https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I downloaded the programs but I'm having problems getting them to work on the laptop. That's a separate issue I suppose but it's one that I can't seem to figure out.
PO also got a compression test and leakdown test post being told to replace the already replaced engine. Numbers are: Cyl 1-140psi, Cyl 2-130psi, Cyl 3-130psi, Cyl 4-125psi
Leakdown test: Cyl 1-5%, Cyl 2-6%, Cyl 3-5%, Cyl 4-5%
Some more turbo details from the PO: Shop found the turbo to be bad (replaced 4500 miles earlier) (prior to me purchasing)
It appears as though the turbo was replaced but there is no mention within the parts list-just gaskets and seals and union screws, etc. I think this was under warranty?
At the end of the writeup, it reads "tech noted the clutch is weak and slipping" so if that's true, that sucks. I didn't notice it driving onto the car carrier or off, but it's not like I've had this thing down the road.
approximately 100 miles later in October of 2015 (?), he's back at the same dealership.
This time, the complaint is that there is a check engine light and the engine has no power.
Code pulled is P2016 (no longer appears, probably thanks to battery being dead when I arrived) and the tech found the oil a quart low (don't see any leaks) and a crack in the TGV (I don't know where to look). He declined any further work as the shop recommended another engine replacement.
Lastly, here are a few videos-one of the car running and the other of me checking the timing as per a recommendation.
I'm sorry for the very lengthy first post and I thank anyone in advance who has the time to help me dig into this.