When the car is idling its fine but when i hold the gas at any given rpm it will fluctuate by its self without moving the gas.

 

If you do this, the engine is not idling, so it can't be a weird idle. Artificially holding it at an rpm higher than its real idle without load, is just giving the ECU a brain fart. Why are you doing it? In fact, the ECU is programmed to give you an EPS light if you hold the engine speed at 3000 rpm or higher for more than 3 minutes. I'm not saying you are doing this, but this is merely to indicate that for various reasons, the ECU doesn't like it.
If you do goofy stuff, expect goofy results.

 

Your turbo right? Are you running a different ECU?

 

you are right about the idle but when i figured it out by when i to went go launch it started to fluctuate and sputter,and i have stock computer for now.

 

If you are running the UR turbo kit with the Greddy eManage and injectors larger than 440 cc, this is normal. I had the same thing with mine with 600 cc injectors. The stock ecu and the eManage are "fighting" with each other. In a way its a good thing because you can't do high rpm clutch dumps from a standstill.