Can you just switch a vcm?
If I have the same engine as my buddy can I just switch our vcm to show him
how much power a program will make?
- PatLv 41 decade agoFavorite Answer
You mean a PCM? Yeah, but make sure it's from the SAME YEAR... Depending on the engine, like 4.3L v6's the fuel injection and ignition systems changed from year to year. the PCM from a SFI engine won't run an engine with MFI properly, if not being completely incapable of running it.