Never mind. I just watched a clear video that shows the the 850 turbo has two studs in the turbo flange (with nuts on the manifold side) and two studs in the manifold (with nuts on the turbo flange side). So this appears to be normal.

OK, now I'm confused. I just put the car up on ramps to look at the underside of the turbo flange and it appears that the nuts on the bottom of the flange are on the manifold side (red arrow). From the top side, I thought the bottom nuts were missing, but it looks like the bottom studs go through th...

I don't know if this is the record for the oldest topic resurrection, but here goes. It’s been several years since I’ve really driven my 1994 850 Turbo, but now that we have a couple of new drivers in the house, I’ve finally committed to making it roadworthy again. That means I can no longer ignore ...

Thanks, Misha.

misha wrote: ↑15 Sep 2024, 15:58 T number reveals the year:
IMG_20240915_235745.jpg
T95 for '95.
T96 for '96 and so on.

I have been looking around for a spare ECU and I have noticed that many of the listings show the 1994 850 Turbo ECU (ending in 072) is for 94-96 cars. This is confusing since the 94 and 95 had EGR, but the 96 did not. I was wondering if there is a way to determine from the serial number or other ide...

Replacing the fuel system relay seems to have fixed the "engine dies when the hood is closed" problem and also some "fuel cutoff under acceleration" problems I was noticing. It also vastly improved the battery life of the car. Before, it would drain the battery almost completely ...

Sorry it's been so long since my last update. I think I may have fixed the parasitic battery drain problem, or at least, made it into a much, much slower drain. While replacing other things in my car (PCV system, radiator), I discovered that the fuel system relay (up above the radiator) was acting s...

Here is a follow up for a few things. I finally got around to doing a full PCV system replacement. I did that mainly because I wasn't sure if the previous owner had done it. Upon inspection, the PCV system looked almost brand new so I ended up not replacing much of it. While doing that, I replaced a...

My apologies. It's been a while. I have been dealing with other issues and the Volvo is more of a project car so I haven't been in a tremendous rush to fix it. That being said, I did replace a couple vacuum lines that had holes in them. The car behaves about the same as before, maybe a little better...

Chuck W wrote: ↑08 Mar 2021, 11:38 I would drive it for a bit and recheck codes.

Yeah, I agree. Who knows how long those codes have been in there.