On my way home from work yesterday got about 3 miles down the road and I mashed on it a little and I had no boost. Motor seemed fine but had no get up and go from turbo. Cst said 0 on boost. Looked out the back window and my stack was blowing huge amounts of black smoke. I let off the pedal for a few miles and tried again and all was fine? Any ideas? I'm running a innovative SRL tune.