England retained the Calcutta Cup after a 15-15 draw at Murrayfield, with neither side able to find a try.
Youngs was introduced as a 55th-minute replacement for Ugo Monye as the Tigers scrum-half had to make his senior international debut on the wing.
Lewis Moody came off the bench just after the hour to claim his 60th England cap and join Louis Deacon and Dan Cole who started the game in the England pack.
Toby Flood entered the fray as a replacement for the injured Jonny Wilkinson early in the second half and twice kicked England into the lead, at 12-9 and 15-12.
But he was unable to snatch a winning shot, with a late penalty from halfway which fell fractionally short and a drop-goal attempt which was charged down as the clock passed 80 minutes.
England have two wins, a draw and one defeat from the RBS 6 Nations Championship so far, with a trip to face France in Paris next weekend to come.
Tigers captain Geordan Murphy celebrated a second successive win with Ireland as Brian O'Driscoll marked his 100th cap in a 27-12 win over Wales at Croke Park.
