to re-iterate what i was trying to explain in my second to last post, is it possible that since the way the SSAFC works is... to lean out the air:fuel it takes the signal from the 1st o2 sensor and tells the ecu that it is running too rich therefore the ecu leans it out to compensate. so is it possible that the SSAFC is telling the ecu its wayyyyy tooooo rich and throwing a code? cuz i was thinking i could get a fuel pressure to reduce the amount of fuel in the mixture naturally this way i can have the ssafc lean out the mixture a bit less? anyone have any ideas if this sounds believable? my plan is to put the stock map back on, all numbers at 10 and see if i get the code again, deff gotta bring boost back down to stock though to avoid fuel cut. ill prob lose a lot of money in gas too. but its worth a shot to finally get rid of this ******* CEL!!!