i have a 93 vx hatch and i cant figure out whats wrong. it idles up adn down a little funny until it warms up so i replaced the throttle position censor and it still does it. also while driving the car if i try to drive at a steady speed under 3000 rpms it bogs out and tries to quit. so i have to drive 60 in 3rd gear at 3000 rpms. does any one know hwat my problem is? thanks much the help will be appriciated.