Originally Posted by nightscr3en

ok i have a new problem now lol, sorry if im bugging this forumn i just put in the new ecu its a p30 ecu, i can start the car but i cant shift gears, but when i put a key in the shiftlock release i can shift gears and drive the car, also with the p30 ecu a check engine light comes on but with the old ecu which is a p06 i can switch gears but the car is horribly slow, lol another one too since i used the original jdm harness and the p30 ecu do i have to modify any wires for the vtec?