Is replacing spark plugs a job that can be done by a novice on an '01 T5? I just got the car back from the dealer for 75,000 mile service and ETM software upgrade and my car is still misfiring regularly at idle (had hoped ETM upgrade would solve problem). One of the recommendations on the sheet was possibly to replace spark plugs (although they didn't tell me until i picked it up and service was closed). I got the car at 62k so it's possibly the 60k service was never performed. I was hoping having it in they might be able to figure out if it had or not, but aprently not. Anyway are spark plugs a do-able job? If not do you think I could i just take it next door to tuffy?