Running problem. car has no power ,,,like the cat. was plugged. replaced the cps, cam pos sensor,map sensor, and the throttle position sensor and coolant temp sensor. cat has been temp. removed.can anyone help with this?

More likely a fuel delivery problem and highly likely related to the use of ethanol-based fuel.
Replace your fuel filter, and verify sufficient pressure at the fuel rail. Replace the fuel pressure regulator and/or the fuel pump as indicated by pressure test. Verify that rust hasn't clogged the fuel pickup strainer in your gas tank, and (as a precaution) replace ALL FUEL with fresh (ethanol-free fuel, if possible).
If you have not performed a major tune-up on the vehicle (including plug wires and coil packs) within the past five years or 50,000 miles, do so.