The MS kit/processor comes with just the standard MS code, "bowling&grippo" MS 1 code. You need to configure the Megatune 2.25 to read that version of code. You will want to run the "extra" series of code, which you need to find the latest stable realease version. You should have downloaded and installed the Megatune Configurator program, which is where you can configure megatune to use different versions of code. For example, MS1, MS Extra, ect..So for now, until you are ready to load the "extra" verson of code into the processor, just configure your megatune to read the basic MS1 code, which is all you need to see if the MS works and powers up. There is tons of info at msefi.com on how to load the "extra" series of code into the processor, it may be easier to you if you read up on it, rather than trying to explain it to you over here..