I emailed HP a while back and they said 2002.

I'm sure someone here has done it.

 

I was thinking about swapping to the 02 PCM to get rid the the false knock i've been getting at 9psi. How much do they run usually and where the best place to find one?

 

I would think 02, since that's the PCM that you're tuning. I've thought about this too...eventually I would like to get some sort of tuning program, whether it be HP Tuners or LS1 Edit or whatever is the hot item when the time comes...

 

Junk yards should have them, and I would think they would cost around $50. Try www.car-parts.com

 

Allen told me he would upgrade mine for the price difference between the 99 and 02 tune which is 50 bucks.. Im doing it on my next update.. hopefully sometime next week after i get my gears installed

 

so are there any other things wrong with the 99 pcm other than it pulls timming? I was also wondering if that was al that it does, then why not just find out exacly how much timming its pulling, and advancing your timming that many degrees so when it pulls it then you would be dead on? Or was this just a waste of my time thinking of this?

 

It doesn't consistently pull timing. It's rather random, and unpredictable. At least my butt dyno says that.