Hey guys, first post on this forum. I have recently bought a new car. An 1994 r33 gts-t,which has a RB25de neo in it (n/a as im still on my p's) im having and issue with it idling (plan on cleaning the aic this weekend/during the week) and it is running rich and very poor fuel economy. I believe it may still have the r33 gtst ecu (ecu has blue label on it) I would like to know if it is possible that the ecu is the problem, i have clean the afm, done plugs and changed the coilpacks to splitfires. thanks and i look forward to being involved with this community