p0204 injector 4 - circuit malfunction wiring

So I was cruising down the highway in my 2009 Dodge Nitro R/T (4.0L V6 SOCH Engine) and decided to gun the engine to hit passing gear when my check engine light came on. I continues to flash and ding off and on. The car started running really rough and I barely made it home. I did the key dance...