injector trouble codes help please!!
 

so last week i noticed my truck was sputtering or cutting out slightly on the highway, kinda chugging like it was losing power for a split second or one cylinder wasnt firing or something.sure enough later that day it threw a p0207 code(cylinder#7injector circuit)so i figured ok maybe my stock injectors are failing,150,000k cranked up on the juice programmer spewing black smoke all day everyday, sounds reasonable.then today about a week later it started running really rough and threw p0206(cylinder #6 injector circuit) hmmm 2 injectors failing in one week...not so likely. now it clunks and idles like a dodge(bag of hammers)and runs like total crap.2 cylinders not firing feels about right.but by the time i got it home it threw p0306(cylinder#6 misfire) and p2149(injector positive voltage relay control circuit group 2)??? whats goin on?? not just an injector failing like i thought last week obviously something else is wrong. any ideas guys i dont have a clue where to start.
thanks for your time ,much appeciated :humm: