I can't figure out what the problem is? I replaced the air filter replaced all my belts replaced the spark plugs but it still feels like it has less power than it should I also noticed a hose that has no cap or is plugged in to anything, will post a picture as soon as I get back to my car, any help? Thanks

 

Did this just suddenly happen or has the car been gradually loosing power?
Have you checked for stored codes? Any recent work done?

 

I don't know what those are? Sorry I don't really know much about cars, that's why I came to this site to get help. And it's kinda gradually been happening. And the only work I've done is replace a power steering hose, replace the o2 sensor, replace the spark plugs and replace the air filter.

 

don't forget to replace your distributor cap and distributor rotor...also did you gap your spark plugs correctly ?

take a detailed picture(s) of that hose that has nowhere to go to

 

Sorry about not posting the pic yet will be up tomorrow, let someone borrow the car getting it back tomorrow.