08 44k miles p2263

[fish10782]

now I know what the code means. I have looked throught all the wiring to the sensors and made sure the plugs were all snug and no bent prongs. this code does not occure while driving down the highway but mainly in town. stop go traffic or if you romp on it. The perfromance does not seem to be effected. am running spartan 275 egr has been removed and dpf "fell off" so thinking turbo bearings or the actuator. I have a spare actuator, but the odds of the turbos being the problem?????? I will be taking an oil sample here soon to look for metal in the oil. I have oil samples from every oil change since the truck was new. any suggestions and CURES for this issue??