Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
Jump onto pcmhacking for more info if you want to use tunerpro and make changes (can buy a flash based memcal called an NV ram to make changes in real time). Can connect with ignition on or engine running. You'll need to have the right definition file loaded so that the program will be able to interpret the data it sees from the pcm. See here to download one for your application. https://pcmhacking.net/forums/viewtopic.php?f=10&t=29Even more sorted thanks to Jason. I have bought a key for his own software, which will me much easier for a pretty much computer illiterate person like me. Thanks Jason for answering all my PM's.