I have a 2008 pontiac grand prix, and for the last few months i have been experiencing a light that comes on the DLC which says reduced engine power. Right before the light comes on i am on the throttle at a regular pace like in a construction zone following traffic and maintaining speed, but then its like i let off the throttle but i dont then the light comes on then when i try to accelerate its slow and will only go up to 75mph and under full throttle the rpm will sit at just over 3000, when i come to a stop and try to take off it takes almost 20 seconds to engage the throttle to take off and the acceleration is not even there. Also, when i go full throttle at a stop to try and take off faster the throttle will stick and slowly accelerate. Now, i have pulled a few codes if anyone needs them. Thanks in advanced for all the help.