05 PCM vs 01 PCM

[Rosco]

Hi,
I know there are a few differences between these, is it possible to upgrade from an '01 to and '05 and would it have any benefits?

probably just a silly question, but something I was curious about!

Thanks!
:)

[TAQuickness]

I'm not sure the benefits would be worth the effort to upgrade. The '01 PCM's were a 512k and '05's are 1meg. I belive the biggest PITA to overcome would be the reluctor ring on the crank.

I'm sure others will chime in momentarily with more info.

[GMPX]

No real benefit, the later PCM's had more code for refined Dual Fuel operation (normal v's E85). They also added more for cleaner emissions controls.

Cheers,
Ross

[Rosco]

Well thats that little question i had solved :)
Thanks!

I wasnt sure if because they are newer they would somehow be beneficial over an older PCM.