About leaking fuel injectors on 1992 Toyota Camry

Cranked engine over to see if cylinders was firing with spark plug out. Cut engine off took flashlight and looked n spark plug hole and saw fuel dropping on the piston. What would cause this on #2 and#6 cylinders?

Asked by for the 1992 Toyota Camry
Open injectors,they must be faulty.
I thought injectors cut off with switch.