Power loss in increases

Greetings friends I would like to help me, my car loses strength only in climbs, which will already change air filter, I already made it clean the injectors, it is a Hyundai elantra of 93, also until I can climb the revolutions since I make it better to 3200 rpm, it will be for this implies in which it has no force in the climbs. until I can upload the revolutions in this type of vehicles, thanks for answering

If you step on the thorough accelerator it reaches more 5000 rpm?
If so, it is not TPS prpblema,
the other you checked the pressure of the pump
the other with gasoline you keep your vehicle, maybe it does not mark what it has in the pond and causes an empty in climbs

I had a similar problem in an Accent and the fault of the clutch, but in a lancer was the fault of the regulation of valves, is your vehicle more spending on fuel consumption?

Thank you for your answer, apparently it is consuming me normal since on the road it gave me about 50km for galon, maybe it is the clutch because sometimes it seems that I skates me a little, for example when it is cold at the time of accelerating I stay for a while and of there accelerates. It will be perhaps from the pressure pump pressure, since I do not check only clean and change filter

Thank you Joni07 for your comments, I have not really checked the pump pressure, the only thing I did was clean it, change the gas and air filter, I also clean the injectors, in addition the fuel tank always happens full, I mean there is no problem if I upload the revolutions to 4000RPM,