alright im stumped on this, my truck has been throwing the code p1093 as long as i can remember, i changed my fuel filter, and it still popped up so i changed the fuel rail pressure sensor thinkin that might be messed up. not the case. i used my predator chip to look at my balance rates in my injectors, im gonna ask yall to bear with me here because im in the military and right now my truck and i are seperated, and im tryin to figure out if its a serious issue that i should get it done asap next time im home. if i remember right 6 out of8 injectors were in the 3.1 and 2 were 2.7. now i know that injectors are coming to mind, but i also had a nother code that got thrown p1094, now if my research is right from best i can tell i may have a cp3 going bad. my original thought before i checked my injectors was the truck fuel system couldnt support the demands of my chip, so i was going to by a ad 2 and stick it on there. i know everyone talks about smoke color and diesel fuel in oil, smoke on start up is a little black puff righht after the engine turns over, then nothing more, its not blue or gray or white. its black smoke, normal colored. so heres what im thinkin may be the case, my injector rates are messed up not because the injectors are goin bad, just because the fuel pump isnt getting nough fuel to them to start out with and that in turn is making it look like bad injectors, maybe, so i was going to get myself the air dog like i planned and hope that since itll send more fuel to the pump the pump could in turn send more fuel to the injectors. or i could say fml and go to the dealer and hope that inspite of my truck being a 2002 that they give me a little sympathy because im not home very often to look after it and therefore do warranty work on my injectors. again my truck is showin no other symptoms, no ses light , no weird oil, no white or blue smoke, the only reason i noticed somethin was odd was because i used a predator to check my codes and injector rates(a note on this the truck was NOT on stock tune) . on another note, i took my truck to a non gm garage for my first real "dtc scan test" and they didnt say anything bout injectors, they said fuel rail pressure sensor hence why i changed it any and all thoughts are welcomed and are appreciated:help