plug change. I would change the PCV valves, do a boost leak test, compression test (for piece of mind), and OHM the injectors and TPS atleast. It sounds like a boost leak which could mean a hose is not plugged and the boostleak test will help you find this. I hope that helps but on a used car like this there is a lot of work that is needed to make it run like a champ again
Good luck
"Do you guys put the key in "balls down", or up?" -BobbyT 10:28:19 03/06/09