Brought my car to the shop for a fuel leak on the return line from the passenger side fuel rail. Got it back and it sounds like this, I have a GrimmSpeed BPV and it did not sound like this before. All they touched, according to them, was taking the intercooler off and taking the BPV off the intercooler and of course the line. I checked all the intercooler couplers and checked the BPV on the intercooler and all was tightened down and nothing wrong with them. So I took off the intercooler and put it back on to make double sure and it’s good, still built boost and everything. Do y'all have any idea what is going on??
Almost sounds like a light miss. Try reflashing the tune and do a relearn. Something could have changed slightly.