I just got the BBK CAI and Diablosport tuner combo. I installed the CAI and then put the custom tune on. I am now hearing what sounds like water running through a pipe behind the dash. Is this just water circulating through the cooling system and I just never noticed it before?

 

Are you sure it's not an "air whooshing" sound? As that would be normal with a CAI. Is it only making that sound when you are on the gas by any chance?

 

No its not air whooshing sound. It definitely sounds like water gurgling through a pipe. And I hear it just sitting idle in park (It's an automatic). Seems to be behind the stereo. Maybe water going through the heater core?

 

I'd guess the heater core as you have. There's nothing in a tune that should cause that so perhaps you're simply being more... critical... (a.k.a. **** ) about how your car is responding to the tune.

 

The A/C drain hose is plugged, most likely.
Water from condensation can no longer evacuate so it's slashing around.

 

Ahhh...Good point. I'll check it and see.

 

I was thinking the same thing. Always have been critical when doing something like flashing firmware in a major component. Being in computer repair for 30 years I know the risks of flashing firmware and what can happen.