hey guys i have a jdm b16a gen 1 in my 95 hatch just swapped in this week and im having an issue... when the car is cold the car works great but as it warms up from idle to 3k rpm the engine misfires and surges as your driving but idle is constant no fluctuations at all and aprox 700-800 rpm wich i thaught was normal.... bur from 3k to 7500 everthing work great and pulls hard (compared to the ole d15 lol ) and the ecu is a p28 chipped with a b16a program
just wondering if anyone had an idea what could it be?