why is my car not working
 

I was driving down the road at 45 MPH and when I tried to speed up the car started bogging down. I also can't get enough power to go up a hill it runs like it is needing more air, any ideas? ** I replaced the spark plugs and wires, didn't help, I also checked my intake and exhaust for any problems, found nothing blocking the way. My car is a 1999 model.

It could be a whole range of things, without further information we won't be able to help. Take it to a garage that offer to diagnose problems for free, once they tell you what the problem is they will quote you to fix it or you can just fix it youself.

Did u hook up your scanner?
If this car has something serious
its best if you take it to the Mitsubishi Dealer
they only charge $115 for a diagnostic and they
will tell you right away whats wrong with your car,
they will even show you what part you need..
If I would of known the Dealer charges only $115
I would of went there first, instead of taking my car
to a Indenpendent shop they charged me $525 and they still didn't
fix my car right.

plugged fuel filter bad hose on the fuel pump to tube in the tank