123 is "throttle position sensor voltage too high"(damaged wires,sensor, or ECM pins) and 505 is "idle air control valve output stage cutoff memory difference" (damaged actuator,wires,connector, or ECM output pins).
Sounds like fun. Probably bad connections (or wet)is first easiest guess,or if all else fails maybe ECM communication problems which i think can be sometimes fixed by hooking to the dealers laptop and "re-flashing" the ECM software (I read that here somewhere i think)

 

how much you think it would run to get it re-flashed.

 

It only take a moment to do so probably nothing.

 

Welcome to the site shadrack

 

well the codes i had come up was not the problem i was'nt thinking rite we had the wires disconnected from the throttle body when we got codes so now i back at step one so what my problem is when i give it all it got it bogs down and has no power like it not geting enough gas and it want idle and stay running unless i keep it half throttle 4 a min or two do any one have suggestions 4 my problem

 

saw the same problem on a 08 800 rene on my last ride. bad fuel pump

 

yea i thought about that to i was gona check that tomorrow it all started when i got bad gas at a store i bought some complete fuel system cleaner hopen it would work but i dont think it did i have pulled the throttle body off an cleaned it an the injectors but no diffence