the spark plugs come pre gapped so if your messing with them when your installing them thats all on you for issues. I would suggest getting the really good platinum plugs from bosch with the 4 points. Its a bit pricy but if your going to use something those are the best ones for that engine. As for the dieing when you hit hte gas peddle that is either a cloged air filter or maf sensor, crank case hoses or fuel pressure regulator. It could also be a cloged fuel filter or failing fuel pump. I would replace the fuel filter tho regardless if you have not had it done in over a year and especialy if you been running low octane gas in your car. Premium or higher gas only in audis and vw's
1 people found this helpful.