I think the advanced timing makes it sound like that.
04. 4 3500 4wd cc dully 373 6speed sjr 50k
94 2500 2wd xc 354 auto 250k
Mike, software 1 (economy) is timing advance only with no added fueling over stock.
You have to remember its a diesel its meant to rattle, the retarded timing is what keeps it quiet, hotter egt's.
The stock timing curve is written for emissions purpose's.
Thanks
BOB, If mode 1 on the Jr is timing only, why so much smoke?
BOB, If mode 1 on the Jr is timing only, why so much smoke?
They are working on it...
On the 3rd beta tune now...
Just loaded SW#1 from beta 3 and went around the block, NO SMOKE!!... well a little at 1000 rpms in 6th at 30 mph![]()
2700 feet, 61*, about 65% humidity... Just real light acceleration like normal and saw zero smoke... Very happy. . will report more as I get a few more miles on it.
When and how will the rest of us country bumpkins load the newest/latest on our Smarty Jrs. ??? Is it available to all yet???
I am convinced that rpm management cures the smoking problem. Don't lug it down but keep the rpm's up over 1800 +/-. I have also convinced myself that the SJ on setting #1 gives me about 1. 5 mpg more.