Today I have run a diagnostic using my nanocom just to see if all parameters are correct. I have found AAP around 96 under heavy load (96.3 at 604 MAF, 3500rpm, turbo 215Kpa). Does it mean something is wrong, or it is still within limit?
215 - 96.3 = 118.7kPa(below 1.2 Bar) boost which for a facelift is a bit low. At 605 kg/h sucction you should get close to 1.35 bar. In what shape are the intercooler hoses ?, aren't they soft ? also check how many threads are between the wastegate rod and valve(should be around 13 from factory), the diaphragm and spring in the valve and turbo hoses are getting ''tired" in time so tighten the locknut to 11 threads and see then, if it feels better then IMO it's time for a new valve and eventually new silicone hoses. Do you still have EGR ? If yes that can be another issue so check if the valve and the MAP sensor are not gunked up.
I already have silicone hoses but the original ones also showed same values. Egr removed, Map new one, decat pipe. Wastegate rod is already on 12 thread.
I forgot to mention that the car has remapped by the previous owner (i have no details about it) and the MAF is less than a year old and genuine.Then you should think about a remap for that, i would try https://stormtuning.com/ , from all i've read on forums they develloped a kind of "hybrid" fuel map for Eu3 engines where the MAF sensor is completely neglected but the car runs beautyfull based on reviews(off course i can't explain more as it's not public info which is understandeable even though i dont undestand how it's possible) i trust them so one less thing to worry
).
