[cotbu]

Damn....! all you did was narrow down the cylinder with a power balance test. unless you can tell that it's fuel or spark that was missing. Try Ωing the injectors?
So your next step is to check for spark and fuel for those dead cylinders.
remove the plugs, check for spark, remove the fuel rail check and for spray. You can place the injectors over a rag, cardboard, in empty soda bottles or over a bucket. just keep away from open sparks or flames. ask an adult for help! Or just replace injectors, plug wires, sparkplugs, rotor and cap, ect.