06 Cummins with fresh reman. Injectors replaced all 6 still black smoke
 

Yes I talked to several diesel shops about my problem. The 5.9 smoked more than I liked even at highway speed black n grayish smoke behind me can't see cars behind me. They told me injectors. Replaced all 6 got it back running lost some of the smoke but on takeoff still leaves lots of black smoke. Has new air filter 5" exhaust and a smarty Jr. It starts off kinda slow then picks up and goes. Have boost gauge and it will hit 30 pretty quick any help will be appreciated

Thanks for joining, it's great to have you here

Tony

Are you running a tune? If so try changing it to something else. My truck does the same thing with me running the hot tune.

Welcome to the forum!

I've been running smarty jr and mines the same way. Seems to smoke way too much for a smaller chip. If I wait until the turbo is spooled up a little before I get on it, then it will smoke way less. But if I give it too much foot from a dead stop it smokes out whoever's behind me.

next time buy new bosch injectors, not remanned. what is your rail pressure doing? doesnt sound like you have a boost leak

Actually just put in the tst powermax and it doesn't smoke sesrly as much. When it it does smoke its grey and the truck is pulling hard. It really goes now! The jr was way too smokey for what it did and was child's play compared to the tst powermax. I have only had the tst to lvl 5. But way more power and way less smoke so far.

a udc tune would be best