I have a 1989 300e it was runing fine then it started slowly lost axcelleration power. I checked the spark plugs all 6 where fauled i cleaned them and reinstaled they where all fauled again with in 1 mile of normal dirving. The car ran fine all morning then this happend all of a sudden. the engene was reving fine in n for a while now it is sputtering in neutral too. some how the engene is getting too much fuel, it is blowing out a lot of black smoke a sign of Running to rich
could the coldstart be stuck or EHA
also where is the cold start?

i just heard it might be my temp. sensor in the fuel injection does any one know where that is

 

I just pulled EHA seams fine i tried to blow through one of the holes no air came out of the othe one, should it?