low beam trouble

i have JDM 1pc headligths and i bought an H4 HID kit and so i had to convert from h4h to h4. when i did this i bought some h4 plugs and trew away the h4h plugs away and hooked up the hid kit and work with low beams only like it was suppose too not high beams nowi took the hid kit off cuz im selling my teg and im put the h4h bulbs back in and they only work with high beam not low but im still using the h4 plugs not the h4h but i tried a h4 bulb and it dose the same can anyone help ???