Peugeot 1.6THP 156HP 2014 Engine problems

[ivica001]

Hi everybody, I got this car a month ago from a used car dealership. I noticed some unstable little shaking of the engine in neutral (like every 4-5 seconds trembling a little), and recently my check engine light came on, remained there for some days, and then went off. I checked it on OBD2 (the cheap one) and found some error codes that are worrying me: P0016, P1336, and P1337. Before that, I had an error code for intake air pressure, which I solved by replacing the rocker cover (it didn't fix the engine shaking in idle). During that time, I replaced all spark plugs, checked coils, and everything was fine until the check engine light went on. So i decided to bring car to more serious diagnostic check and i went to Peugeot service garage, they did report on it, and point to Cylindar 1, they said its some deeper problem with missfire, probably in future it needs service there, maybe its piston ring stuck or cylindar problem, they also found messy spark on first cylindar, they are suggesting me first to come next week to clean cylinder/valves/piston with some cleaner with oil to see if its gonna fix the problem. And to drive it more aggressively afterwards. Can someone take a look at these diag pictures and give me thoughts?

[PaulC5]

Have a read of this topic which might be similar viewtopic.php?t=84642

[ivica001]

I think its not related with same error codes

[gwest]

Have a look at the following entry on aussiefrogs for the part that deals with the ultrasonic cleaning of the Vanos solenoids
https://www.aussiefrogs.com/forum/index ... er.151662/