Maxgomez16

Hi! I've been having this problem for quite a while now, since I haven't identified the source. Whenever I start my car and take off, it starts accelerating aggressively by itself. Just as if you were pumping the accelerator. I apply rapidly the brakes then I get a rough vibration on the brake pedal and after about 5-10 seconds, the brake pedal stops the roughness and sets back to normal. At the same time, the rough acceleration stops. Then I press the ASR off button and the warning light in the speedometer doesn't come on, as if the ASR function is disabled. This is very tedious and at some point, it could be dangerous. Please, I would greatly appreciate your input.
Thanks!!