[Dark_Knight7096]

Ok about a month and a half ago my GTP was idling REALLY rough and the drivers side exhaust smelled like straight gasoline, the passenger side pipe smelled a little more than normal but not like drivers side. So i Parked it for the day. Later that evening I tried taking it to my home till i could find out what's wrong with it, on the way to my house i threw a code that said, "Misfire Cyl 5" and "Cyl 5 injector circuit open", from there I took it to a lot to leave it parked for an extended period of time, my car stopped throwing the code and ran fine, until i stopped at a light then the RPMs would fluctuate between 1500 and 500 and most of the time die out unless i was giving it gas. It sat for a month, then i drove it and it was perfectly fine for a week, now the same thing is happening, running rough, drivers side exhaust smells like pure gasoline, and car stalling out at stops, no codes have thrown yet though. Last time it happened I purchased a new injector put never got around to putting it in because the problem went away for a while. Now i'm not sure if a single injector would be causing all these problems. What do you guys think? Does this sound like it is all being caused by the 1 bad injector or is this something else?