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Running rich? Star diagnostics?

Grovsie31

Active Member
Joined
Feb 3, 2015
Messages
982
Location
Stafford
Car
2009 335i DCT
Hey all. Is it worth me borrowing a friends star diagnostic to see if the car is running rich? I have no idea what it will show, and how id go about sorting it? if anything is wrong that is. Id of thought modern ECU's adjust things themselves...

On light revving it doesn't blow anything out the pipes, but when planted to the floor, I can see black coming out of the tips, so it seems to be at WOT, or higher revs.
 
Black smoke Is unburnt fuel.

A check of live data on a star to make sure everything is ok is what I would do.
 

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