This concludes the PCV repair. I had to get a new air intake pipe, so I bought an aftermarket one. It wasn't perfect, but it worked. The only thing was, I had to reamed out the PCV port so it was bigger. The oil leak persists, thus it appears I'll have to perform the oil seal job.
It was out of the question for me to try removing the light plug because it had cracked in half. Oh no.
After the coolant temperature reaches 60C, the DPF actively regenerates, which is why there is smoke. For a little period, it is emitting a considerable amount of white smoke. It appears like there's a problem with the gloss plug and the post injection in that cylinder. The gasoline is merely vaporising instead of igniting, which might explain the heavy smoke.
For keeping tabs on the soot level and differential pressure in the DPF, I've been making good use of an Autel diagnostics tool. While parked, it can also activate a forced regeneration. Even after 10 minutes of trying, the exhaust temperature remains below 350 degrees, thus clearly it isn't working. The glow plug is probably at issue, and the cooling effect of the vaporised gasoline is to blame.
According to the error code, I've experienced several DPF problems where the soot concentration became too high for regeneration. Following this, active regen was hindered while driving about with the fuel light on. Because it needs to clean the code before it can try aggressive regen again, it becomes troublesome. Lucky for us, a journey along the French highways has done a great job of clearing the DPF. In order to prevent it from filling up again due to the low speed island driving, I need to get that glow plug corrected.
Has anyone ever tried smoke from typical regen? whether so, can you tell me whether my idea makes sense? I am grateful.