OK so same problem however i have multiple cylinder misfires and the dealer has had it for a week now, and still can not pinpoint the problem they already re-input the new codes and when i picked it up i drove it home and the "WTF" light came back on and it broke down on me again, so i took it back to the dealer, and they still have it is there anything i can tell them to look for? Already replaced the plugs, wires, fuel filter, checked the injectors, intake leak test, put it under load Someone anyone Help!

My car will run fine between first start up and normal operating temperature, after the engine warms up it will have a multiple cylinder misfire and feel like its surging gas into the engine literally sitting at a redlight my whole car would jump back and forth like it had a crazy CAM package in it....