I can't seem to find any problems. I recently cleaned the air filter (did not install a new one) and shortly thereafter the check engine light came on. I went to an AUTO ZONE store and the computer link would not work. I am guessing that only a MB link will work or am I wrong? Just hate to go to the dealer for an analysis and pay big buck for a small problem. Car is running great but I am worried? Any help or answers would greatly be appreciated. THANK YOU!!!!