Ive been cleaning my inlet manifold and and EGR valve today.They was a right mess.This is what they was like.The pics are not that good its the crappy camera. EGR valve. Inlet manifold. This is the crud i scraped out. and after a bit of cleaning i was left with these. Before i put it back on i want to disconnect thr EGR so it stays clean but will i get any running problems if i do?