Hello everyone. My v50 is giving me problems 305 code misfire
 

Car was running great. It got towed out here from east coast. Then sat for 2 months. Sarted it up to take it to get it smogged. All check lights came on check light would flash when accelerating and at a stops rough idle like its going to stall.. code was 305 misfire code. So of course i just did basic tune up. Plugs and coils all 5. No change at all. Terminals are tight starts up perfect little rough in park. Going to reverse is worse then driving is okay just feels like its about to die very rough idle at stops. It was took for a rough ride across the country on a trailer. What came loose? Anyone with any ideas. A vacvuum hose i dont see any info would help. All i know about is to check and clean throttle body. Maybe its clogged fuel injector. Mass. Please help me.....