ok i have 4 black wires and one white wire coming off my resister box. the 4 blacks would get connected too the four yellow and black wires all together right. and the white wire too the yellow and black with 12 volts switched. my car sounds like it is miss firing like hell wtf

 

Do a search, this topic has been covered extensively in the past, complete with diagrams.

 

check all your connections and make sure the injectors are plugged in good, if thats all good i bet u got a bad injector.