Originally Posted by Tripintaz
...actually come to think about it....does it only not reach boost target as the weather gets colder? It could be that your tuner did not tune the tables that reduce the WGDC's as intake temps get colder. Factory values in these table will cause a big loss in peak boost once the intake temps start dropping below ~60F. Since the EBCS is more sensitive, if those tables were left at factory values it would be pulling out too much WGDC. It could be this instead of a boost leak. Is your tune locked? Can you ask your tuner for a screen shot of the WGDC compensation vs IAT tables?
Yeah I actually thought that might be the problem initially but it just didn't make sense to me that colder temperatures would result in lower boost. The weather has gotten continually colder since the tune was done. I'll email the tuner. How do I know if my tune is locked?