The visitors took a first-half lead when Tony Capaldi picked up a deflected cross from Mickey Evans, and shot it low into the net.
Jamie Scowcroft glanced a header in off the far post shortly after the interval.
Three minutes later a Chris Makin cross was headed in by Dion Dublin to claim his fourth goal this season.
We’re trying to make this into a hard place for people to come and beat us, and we did that.
Hopefully we can turn this stadium into a fortress and pick up points at home.
But after watching that game, I can understand why Leicester were losing matches late on because we were doing some crazy things in the last 10 minutes.
You’ve been told boys!!!
Leicester: Taylor, Makin, Dabizas, Dublin, Stewart, Gillespie (Blake 79), Nalis, Gemmill, Morris (Williams 45), Scowcroft, Connolly. Subs Not Used: Heath, Dawson, Benjamin.
Goals:Scowcroft 49, Dublin 52.
Plymouth: Larrieu, Worrell, Coughlan, Doumbe, Gilbert, Norris (Adams 71), Friio (Makel 80), Wotton, Capaldi (Keith 85), Crawford, Evans. Subs Not Used: Hodges, Lasley.
Goals: Capaldi 9.
Ref: P Armstrong (Berkshire).