When i start rising in RPMs all of a sudden ill get a sudden lose of power,like a really quick hard bog and then the car will come back.When it does this the engine light will flash then go away.Also when i try to read the code the engine light will just stay on,it wont do any long or short flashes.Any ideas?

 

Just make sure the car runs ok with stock ecu. Also did you try load different map, or previous map when the car was running good? In datalog there are no error codes? If that won't help you should contact the shop who installed it / tuned it.