Apply VIN from V6 PCM on V8 PCM?

[thehemi]

I found this message from Bill posted a few years ago:

You can only change the vin on a pcm where you have the year/model license for the vin in the pcm as well as the vin you are trying to change it to AND both would be a valid vin/os pair combination.

I have a '99 S10 4.3 and was considering an LSx swap. The wiring harness I can have made would use the LSx V8 PCM. However, for inspection purposes, I require the original V6 VIN apply to the LSx V8 PCM.

Per Bill, I assume this is not possible because the VIN/OS would not match? Or am I misunderstanding?

[Bill@HPTuners]

Correct, you cannot change to an invalid vin/os pair.

[DSteck]

I thought the new version allowed a VIN mismatch as long as you licensed the new VIN...

To the OP, I just write whatever operating system I want to use, then use other equipment to change the VIN in the PCM. As long as you use whatever file you wrote with HP Tuners and do write calibrations, it'll ignore the VIN mismatch that's programmed into the PCM. You just can't read the file back out.

[Bill@HPTuners]

I thought the new version allowed a VIN mismatch as long as you licensed the new VIN...

The new version will allow you to license a pcm that already has a invalid vin/os pair, but you cannot FLASH in a vin that would create an invalid vin/os pair with our software. In fact 2.25 cannot do vin changes at all, and there's a good chance it never will because of questions like this one to be honest.

[MikeOD]

Some S10's use the same OS's as V8 trucks...so it may not be an invalid pair.