i love how everyone just throws shit at cars and doesn't spend the effort to learn WHY the car is malfuctioning... it could completly be fuel related, do you think cars dont run when they are lean??? i guess when you melt it down, you will figure it out... all of your sensors have readings that can be measured w/ a multimeter... invest in one and learn how to use it and you will amaze your friends on how to actually fix a car instead of just guessing at which part to throw at it next...