Black soot on spark plugs...

[nky225]

Changed the spark plugs on 2.2 direct signum today and they were covered in thick black soot, had poor mpg recently around town, about 27.

Should i be worried?

[Chris SRi]

Black soot normally means that it's running rich. They should normally be a light brownish colour. Do you do lots of short trips where the car doesn't warm up?

[nky225]

yeah normally around 10 miles per trip to work, other than that i don't use it to go very far

[Chris SRi]

That could be the problem then. Try taking it for a decent run, will do it the world of good.