Ok, i did some research. I read in my haynes manual that a bad EVAP canister or EVAP canister purge valve would cause a bad idle and poor driveablitly. This is what I am experiencing. I cannot find these though. The haynes manual says you have to remove the coil pack on the v6 models and its attached to the firewall behind that. I do not see it anywhere. Anyone know where it is located exactly so I can check it? I have a 98 SVT if you need that info.