Dear scotty 

I have a 2002 dodge intrepid 2.7l with 70089 miles on it. When I 1st brought it I notice that the catalytic converter were gone and it was also driven around like that for quite some time. I replace the converter and the 02 sensors. The cel with out for a sec and code came back p0305 mainfold  gasket valve was changes along with all spark plugs and coils.and just cylinder 5 fuel injector. Still check engine light is on go get it check code p0205  came up this time still indicating a problem with the 5th cylinder stuck open. I'm getting told do this do that and I just want the right answer I paid 800 dollars for this car and consider the millage I really don't want to let it go. My question would be due to the research I have done. Should I change the wire to cylinder 5 or should I change my computer? Also some extra things I notice about my car is that I cant put more then the first red line of gas in my car or the car misfires badly while driving. The car cuts off if it's to hot outside only. And also a strong gas smell come the car as while as a shake from the gas pedal and hesitation going up a hill. I hope I told you enough to get help please I've been at it with this car sense August 2021.

Thanks in advance 

G.H