About 4 months ago my check engine light came on, along with my tcs light at random times(goes off when i stop the engine) scanned and found the P0401 code(insufficient EGR flow) removed my platinum and cleaned out my ports multiple times (wasn't too gunky on both occasions) light came on back on after driving for a bit both times. Have today changed my EGR valve, but light came on again same code. Ive seen ppl on the forums having the same trouble but no solutions(except for the obvious ones which havent worked) anybody gotta fix for this?