Prep: 2 minutes; Cook: 20 minutes; Other: 13 minutes
1. Prepare grill.
2. Combine first 4 ingredients in a large zip-top plastic bag. Add pork to bag; seal and shake well. Let stand 10 minutes, turning frequently.
3. Remove pork from bag, reserving marinade. Sprinkle pork evenly with salt and pepper. Place pork on a grill rack coated with cooking spray; grill 10 minutes on each side or until a thermometer registers 160° (slightly pink), basting with reserved marinade. Remove from grill; let stand 3 minutes before slicing.