Dealership don't know.. HELP

[godenm]

brand new cat. converter.sweetcavy,, im not tryin to over your thread, i just would like 2 figure this out also. and i hav tried all these things and no-luck, so no sense in you spending $$$$ like me, tryin to fix it

[godenm]

ialso cleaned out EGR,& changed it w/ another(from another cavi i hav)

[noshun]

I don't want to sound condesending but have you had your injectors cleaned becuase it sounds like a definite fuel starvartion problem. It's not a vaccuum leak because it would constantly rev irratically. A good way to see if it is your fuel line is to use a good injector cleaner with the highest octane fuel you can find for a couple of tankfuls and if this helps it may be worth getting the injectors properly serviced or replaced.