gota take my supra to the mechanic, cant figure out why i am loosing a lot of oil adn where it is leaking from. and gona get him to check my throttle response also. responds kinda late. checked codes adn it is giving me codes 21, and 41. 21 is for the oxygen sensor, but i just put a new one in yesterday and is still giving me thta code. adn i know 41 if for the throttle position sensor, but dont know if that could be my problem or not?