my 92 GLI 16v was feeling doggish, so I had the techs check it out. They told me my computer checked out fine but that my Spark advance wasnt working, and that I would need a new computer for the fix. 1) could this be the culprit of my cars doggishness and poor gas milage? 2) I was already thinking of changing to a more advanced chip, would this fix it? Any help would be great.