Just finished up my engine swap. The engine i put in ran fine in the car it came out of(im friends with him). It idles perfect, i cant beat on the car cuz i put a new clutch in so i done really wanna go wot yet. But as soon as I hit the throttle hard it will hesitate. Any ideas? The engine is 100% stock, stock exhaust and ecu. Havent checked tps since i put the engine in the car but it was fine in my friends car. Any help would be great.

 

bump

 

Fixed it. It was just a fuel cut to the rear rotor cuz the stock exhaust was leaking so much it was boosting 7 or 8 psi which causes the fuel cut. Just put my fuel cut defender in and BAM! no hesitation