Depends.
If you just slightly overflavored, then after steeping it will taste perfumey or chemically, but since you tasted it before hand, you'd know if that was the case. Without tasting it before hand, it just tastes chemically and it could be the PG, VG, nicotine, flavoring, or flavoring level and you'll have to go through a process of elimination to find the culprit...more time fiddling and less time vaping DIY goodness...
Steeping is a "maybe". Maybe it will help. Maybe it will hurt. Most likely it will do nothing.
Click that 3 below my picture just to the right of "Blog Entries:" and then click on the blog on Flavoring Levels. See the comments in ()'s under #7.