Got this truck in a trade. Have had troubles since I got it. Any how had it running for a while started running rough , smoking, dropped in limp mode changed fuel filter and I mean the whole thing housing and rubber hoses. no help changed pressure reg. and plug, nope. Took to shop . wanted 3 to 4 thousand bucks to replace CP3 . Nope brought it home. Found rebuilt on line. I am installing now. Was told that it has to be pugged in and injectors have to be balanced after install. Does anyone know if that is so?