Hi all as the title says im getting slight hesitation and jerkiness on part throttle more so below 2000 rpm it pulls great after this. The car has new maf , cts , all the usual culprits etc. I have replaced the dv and breather valve by the dv which were due as the higher rev range is perfect now its just the low end which is annoying as im usually in traffic 90% of the time so the car is sitting in this rev range lol. When i changed the fuel filter a few weeks ago the fuel coming out of it was black the same on the previous two so my tank has alot of dirt in there is it possible that the pickup on the fuel pump is dirty which could cause this problem. Sorry for not listing all that has been done but i have replaced or done all the usual things but feel free to suggest anything thanks for reading.