Interesting tune problem caused by climate/location change

[dscoobydoo]

I drove from Seattle down to Georgia for training here and took the legacy.

I am running the PP6 with a Dom tune ( I think, maybe Mike tuned it last)
anyway, In Pensacola I got the crappy MAP sensor code and limped it with no boost the rest of the way here.

I reset the codes, and it seems that whenever the humidity levels are high, I get that code again.

I would not have thought that humidity specifically would cause the car to run like crap, but when you do a specific tune, you limit the parameters and it seems this has become my Achillies weakness while I am down here.

Thoughts??

[Legacy777]

If the car is still MAF based, humidity shouldn't matter. Seattle is humid as well...it's just cooler.

I would check the MAP sensor and wiring for cracks where the moisture could get in and cause you problems. That's likely what the issue is.