I have a 92 EX Accord Coupe that has an interesting problem in the with the power curve. When I accelerate, there seems to be a loss of power around 2000 RPM for a split second then it picks up again. Basicaly the power curve has bumps in it, and the acceleration is not smooth. I've tried cleaning the EGR paths in the intake manifold, but that really didn't help. Should I pursue an injector cleaner or somehting, or even as far as pulling the intake manifold and throurogly cleaning it?