Rokket

I forgot to mention, it is a 1.6 Mpi engine, BFQ engine code.

Hello. I also found some oil in the intake manifold, and what I also found is that the pcv membrane is like not sticked to the system, I can lift up the membrane, if I push it with something long enough. Is this also OK, or I should change the intake pipe? I attach a picture. Thank you.

Hello. Have you figured it out what was your issue? I have the same error code, sprayed carb cleaner, but the engine sound remains the same. Thank you.

Hello members! From a few days on my '06 MK 1 Octavia, 1.6 petrol, BFQ engine I noticed a strange thing, which I don't know if it is normal or not: if I am revving up on idle to 2000 or more rpm, I am letting go to the throttle, the rpm is dropping with a certain speed, but from 1500 rpm this dropping speed is slowing down, untill it reaches the idle rpm. I have no MIL, scanned I am having periodically only the 16555 error, with lean mixture, intermittent. I will attach a short movie about this to be more clear. What I or my mechanics did before: - S1 B1 oxygen sensor was changed 3 months ago, because I had an error regarding to this, - the intake manifold was cleaned, - also the TB, which was adapted also by me with the Vag-com, - the valve cover gasket was changed because of oil leaks. - air and fuel filter was changed also 3 months ago to a high quality ones. Once also happened, that I was revving untill 1000 rpm, the rpm dropped, and the engine stopped. Also, when the engine is cold, sometimes, the rpm is remaining around 2000 for a few seconds, but only with the cold engine. When it is warm, I have the situation described at the begining. Do you have any idea, this rpm dropping speed slowing down is normal? I guess not, because like I wrote, I have periodically the lean error, and not only. What is your suggestion, what should I check? Thank you. converted.mp4