is220d 2006 150k suffering white smoke stinking of diesel.
First port of call i checked was the pressure differential pipes coming from exhaust to pressure switch.
i removed pipes from switch and could only blow with my mouth down one so other was blocked.
got out my compressor attached fitting and blew high pressure down blocked pipe and cleared blockage.
took terminals off battery 10 mins and reset ecu.
smoke stopped instantly on start up and was cleared but later on in the day it stated creeping back to the point where i knew i had to look at the 5th injector.
it took a while but i managed to unclip the electric Conection plug to injector.
started it up it put engine management light on but hay presto no smoke at all.
least now i know my main injectors are fine 🥲
getting new 5th injector and try that next.
if it still keeps injecting excess fuel dpf remove and delete not playing with it no more.
anybody know best software to get to code new injector?.
