Combine the vinaigrette, soy sauce, and honey in a resealable plastic bag and add the pork. Seal the bag and place it in the refrigerator, allowing the pork to marinate several hours or overnight.
Prepare a grill for medium-heat cooking. Remove the pork from the marinade, discarding marinade. Grill the pork, covered, until a meat thermometer registers 145°F, turning once, about 15 to 20 minutes. Let the pork rest for 10 to 15 minutes before slicing