Black smoke
#1
#2
#4
#6
c-power is right a stock d max shouldnt smoke unless there is something wrong with your fuel system, which makes it weird that it makes it smoke less with the chip. the chip should make it dump the smake on stage five, not make less smoke. try un-hooking your chip and see if it smokes like it did before, if it does there is something wrong with your timing or fuel system that your chip is changing and fixing. are you seeing a power improvement with the chip? you should see a huge difference on stage five.
#7
i agree...that seems to be true with most diesels...some smoke more than others stock but less with a tuner???? that seems very strange. if you are having fuel problems you would notice and more times than not the smoke would decrease with a fuel problem bc of lack of fuel...too much fuel equals more smoke.
#8