yellow engine diagnostic light on emission valve exceeded on 2004 Dodge Sprinter 2500

Van is lacking power Can't drive over 68mph Is engine in emergency mode. we have had this issue with the turbo before

by in Keller, TX on August 15, 2010
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2 answers
ANSWER by , May 26, 2011
EGR valve was my problem. Poured a bottle of Cleandiesel (silver bottle) and then added some with each tank of fuel solved my problem. (too much soot)
ANSWER by , August 19, 2010
Sorry, not enough information, Possibilities: bad transmission, Turbo, Catalityc Converter, Fuel injection system etc. refer to a Sprinter dealer for diagnostics