My turn for a bit of head scratching. At the track on Sunday, I felt a loss of power. It was on the straight around 100 mph or so at WOT. No noises, just felt like the computer pulled lots of timing. Checked the Dashdaq and the temps were OK. I finished the session practicing my driving and didn't think much of it. Swapped back to street tires and moved the car from the paddock to the public parking area so I wouldn't get trapped inside until late in the day. There was a noise coming from the transmission area, I believe, a sound that could be a vacuum leak, but more of a musical tone. Again I didn't think much of it. Pulled out of the parking and found I had no real power. It felt like the throttle body was only opening 10% even with the pedal to the floor. Exhausted, I drove the 1 1/2 hours home with the ESP/BAS light on. No drama crossing the mountains, just N/A type acceleration ... or worse. Today when I got a break I checked for codes. None. The light is off. The car has "more" power but nowhere near 100%. No noise or singing today. What's my problem? I'll be digging in on Saturday, most likely, but not sure what I'm looking for. I have a spare throttle body in case what's on the car is fried. I'm open to suggestions. Help me make a list and to work "smart". I'll check the boost and timing with my dashdaq before taking things apart. Maybe I'll find some indicators.

Les