my 2002 Chrysler 300M just Yesterday it just start idling rough as the engine light came on. I did the test and the code p0306 came up which is a Cylnoid #6 misfire..
is there anything that I may do to solve my problem?

 

what engine size do u have?
how many miles d u have on it and when was the last tune up done?

 

I'm not sure what a cylnoid is? I heard of a solenoid and a cylinder. Is the cylnoid some kind of merger between them?

I'm going to guess you mean cylinder? The best thing to do is take it to a competent mechanic with a scanner/scope, etc.

Your problem could be a bad plug, coil, injector, valve, piston, piston ring, head gasket, wiring, computer