Hi all, looking for some advice regarding my 05 mk2 d4d 2.0.
This car seems to have numerous issues with it at the minute and I am struggling to work out which avenue I should be going down without replacing part after part hoping that one fixes it.
First main concern is that I get constant grey smoke from the car while engine is running, this increases with acceleration and happens when the car is idling too.
Its not a sweet smell so guesses not coolant, more of just a dirty diesely smell that would make you cough.
I was thinking maybe bad injectors? Though engine runs fine, revs well, doesn't miss fire and starts on the button, mpg seems to be well down though. Was also thinking maybe valve seals? Need to check oil again to see if it burning any though.
Also EML light keeps coming on with code p400, egr flow. It's had a new egr unit and I've had it off and cleaned it which all seems okay, it is a bit sticky right at the top when you try push it down but being a new unit I figured this would be normal.
Its also had a new turbo core and injector seals so would rule those out.
Anything you can think to get rid of the poor mpg and grey smoke would be appreciated.
Regards
Jason