c4vetteontop

Im thinking about upgrading my pcm to a newer setup so i can better tune my vette. What so i have to do to upgrade my system. I can buy a 2001 pcm but what do i have to do after purchasing a new pcm??

RonSSNova

Cool read.

Question.
Was the PCM better after 02? Or, what year did they get better?
I have a 2000, can it be upgraded?

Ron

SWEBLD

Yes you can write a 2002 OS on your PCM, and get rid of the secondary VE table. And that's positive, IF you for instance tune by your self. The PCM gets much faster after 2005, but that's not going to help us C5 guys..

RonSSNova

Ah, good info! Thanks.
I'll look into how to to that with HPT.
And, yes, I am tuning myself.......with help of course.

Also good to know that we can't use the faster PCM's. too bad. i have viewed data logs from a 2008 C6 at the drags. Man, a lot of resolution in that data for sure!

I just found out a month ago that I was logging too many PIDs and killing the resolution on the data I was taking. Slow learning process on all this!

Ron

WKMCD

You can upgrade to a later model PCM than the 98 you're running. It's a complete repin. Very tedious and time consuming. The later models are faster and have more fine tuning capabilities. Ed Hutchings did mine but to be honest, with your mods, it's not worth it.