Problem might be in accelerator paddle sensor or MAF sensor, should go to Honda Point or dealer ship, they will check with diagnostic computer for actual fault, if sensor problem, replace it with new one, don't go any where will waste your time and money, same issue i was found in Merc C class, at the end we replaced its Paddle sensor by diagnose at Shahnawaz, its cost us 18200, Hondas might be cheaper.