ok first the problem. it hesitates when i go up hill and gas mildly. this isnt me pushing the peddle down and it not doing anything, this is me pushing it and it goes regularly and the the rpms drop to about 1/2 and then back to 2 or so and it repeats a few times. this also happened as i was pulling into work yesterday and that is flat ground. i just replaced the fuel pump and i need to get a TPS. any suggestions would be awesome.