help

[danberg1]

i have an other problem im getting code po 269,272,281 cylinder contribution balance fault. i did a buzz test all passed. the problem i having is if you even plug truck in when u frist start it up it idles rough loping after u let it warm up for half hour it idles good. i been looking at forms plug might be bad or injectors being bad or orings or bad oil dirty? i put a new gpr changed fuel filter new fuel pump i havent changed the oil. when i frist got truck was sitting in a flield for couple years i dont know age on oil the owner told me three injectior been replaced couple glow plugs but thats all i know please help also i asked u about code po1728 can that be with my other codes ? thanks for all info u have helped me with