No, if I shift into N before i stop it will idol fine. It does'nt bog down it is as if the idol is set to low but in N. the idol is fine .I've tried setting the idol higher but then when shifting from P. to D. it shifts extremely hard. When i say it fluctuates i mean it sounds as if it is searching for the right spot but can't find it. My plugs are pretty white with a touch of pinkish color I have 55jets main and the exelerater pump maxed out .??????? what else can i tell u that might help?????