Hey guys! When I start my 250 in the morning, it idles at 1200 RPM as it should, but only for a second or two, then it slowly drops to 1000-950, until settling around 830-750 RPM after a minute or so. Is that normal behaviour? From what I've heard described, it should be staying at 1200 for longer? Doesn't seem to matter if I'm in Sport mode or not. Car is a stock, unmapped 250, with a K-tec cat back as the only real modification.