It was failed catalytic converter.

Explanation:
Green line (which represents rear oxygen sensor) on chart should be stable (0.6V) when idling and hot motor.

I changed noisy wheel hub (after 1h fight with drive shaft).

Hey guys, I need some help with code pulled from VIDA: ECM-400C Three-way catalytic converter efficiency, bank 1, Signal too high. 1. Check engine light poped up, VIDA said ECM-400C. I cleared the code, car ran as usual. 2. After 50 miles it poped up again. 3. Next step: pulled graphs for front and ...

It's been I while since last update. There were an issue with PCV. I redone the whole system again and also changed PCV hoses near turbo - now it works like a charm. Thank you @vtl and @abscate. Unfortunately, oil leak near turbo is from head gasket. It was confirmed by two workshops. Leakage is not...

abscate wrote: ↑13 May 2019, 04:50 Adrian, check the PCV pressure with a rubber glove on the oil filler. If the crankcase pressure is still high, the new seals will blow out and leak.

What do you think?

Thanks abscate. I cleaned up turbo and checked if leak still exist. No oil on turbo right now. But... Leak on the other side of engine appeared again. Two camshaft wheels where replaced (6 moths ago) because of PCV - they were leaking. I removed plastic cover protecting timing belt. Probably you are...

Nope, it was 0W-30 all the time.
Last oil change - 2000 miles ago.

Additionally, I had a problem with clogged PCV system 6 months ago. PCV box and hoses are replaced.

Hi guys! I discovered oil leak near turbo (photos attached). Oil consumption increased while driving on highway (speed 80 mph and more). I added about 750 ml of oil after last trip - about 1000 miles. What can I check first to detect the leak? Volvo S60 2.0T, 2006 Oil: Motul 8100 ECO-NERGY 0W-30 A5/B5