> 2.5 four cyl. dodge running lean. failing  emissions for NO; coolant not
> overheating but running hotter than normal. plugs i pulled had white powder
> look to them.  i was told it's running lean by a guy at the parts store by
> the look of the plugs.  I guess a lean mixture would make it run a bit
> hotter too.  Should i suspect the O2 sensor at this point? email
> johnagner@hotmail.com and thanks