Hey, I am set to bring my car to the dealer in a couple of hours an want to ask your opinions. My car has had a consistently low idle rev (round 300-400) for around 6 months now. I have made my dealer aware of the issue but they seem to think that all z's have this issue. Any ideas on what could fix it? the car is completely drivable I would just really like to get it back to where it was.