I would like to be able to flash the 2005 LS2 OS onto my 2005 LS1b(out of escalade). Both are 1MB PCMs. Is it possible to do this without changing the wiring harness? sorry if this is a ridiculous question.
2005 LS1b OS: 12592618 CAL:12593448
2005 OS: 12605740 Cal:12598982