What causes this
I am driving and the car idles fine with no problems. When I take the car out if feels like there is no power up to 3500 rmps them BAM it is like every ounce of power hits all in once. Now it has no power through any of the rpm ranges if feels like I am tring to pull a tanker ship behind the car. I HAVE CHECKED EVERYTHING ON THIS CAR. My car did this sometime ago but it went away with tune. Is it the tune on this car that is causing this. I thought that it was bad O2's that caused this. But the O2's are brand new.


