hi i just bought an frp and i had problems with it idleing to high and some times cutting out, i changed the throttle postion switch and the idle control valve but the prob didnt go. disconected the battery and reconnected and the fault of over reving went, but it is still sometimes not idleing right when pulling up to a junction and cutting out, it also sometimes doesnt give me full power when i put my foot down untill i hit about 4 grand then it pulls, and sometimes it gives full power straight away,

the only thing i havent changed is the lambna sensor? shall i have it diagnostic checked or just buy a lambna sensor????

plz help!!!