Since i buy my motorhome 2012: rough idle , rpm high and low some times, shaky engine. Last month code 25 and 26 at the same time . reset the code after now i have code 25. brad new engine block 25k miles ago. spark plug cap, rotor, wires, oxygen sensor fuel filter replace injectors (reman rockauto).Chek cold start injectors no leak. Clean throtle body no loose every thing look good new gasket of course. No crack on vacuum hose. replace air flow meter whit used one. Always the same problem. the only thing that i have not replace is: tps and temp sensor. Anybody have this problem?