Hi ! My 2005 Chevy TrailBlazer recently started lacking of power. Found out that the throttle butterfly does not fully open and even when the engine is reving at 4000 RPM it does not accelerate. The car is barely able to climb hills without slowing down. The code P2119 came up refering to throttle body assembly and accelerator pedal assembly, so I changed both. After test driving it, I did not see any difference. Wiring and connectors looks good. Fuses are good. Running out of ideas of what to look at now. Any of you would know what could be the problem or had experienced the same issue ?