Just wondering if anybody could help me with the following question:
-I am not a mechanic, but want to change the ECM module and throttle valve control module on my 2004 Golf 2.0L engine.
-Is it something doable by a regular civilian? If so, are there any resources that I can look into that would guide me as to what equipment and tools would be necessary to do this correctly?
-From the research I've done, dealing with the electronic side of things requires some sort of diagnostics computer.

Many thanks in advance for your help.