Dc4Colin

Hello all, this i my first thread i am trying out and a problem with my k24 swapped rsx. It started to happen after i left Tim hortons one morning. While upon driving i would gradually rev up to 3k rpm and my rsx would start jerk me foward this only happens sometimes as im driving. If anyone could give me some insight to what this problem could be? My guess is either TPS or IACV valve needs cleaning. I can post a video tomorrow as im away from the car right now. Thanks