If you floor the throttle when in park and release does your truck come down to a nice idle or does it come down slowly in steps? Mine comes down very slowly and jerky when I have a tune on. Does it a bit without a tune. I think this might be the same issue that I see when letting off the throttle ...

The lights will go off after a bit of driving when you change tunes. I did not get big results in mileage either, seemed to be about the same. But I am happy as it does drive much better, I know on a long trip it does very well (at least in my mind) I have done the best of 20mpg IMP. I know lots of ...

look at the price of the smarty. These 7130 came out a long time ago. They do not have enough memory or something inside big enough to take the extra programming it would take to make it happen. One of the mods explained it one time.

On that note can the new trinity do those changes on the 03 to ...

pretty sure dealers can turn it on if its not on. Is yours an auto or manual. if its a manual then there is some other stuff to do to make it work. http://www.cumminsforum.com/forum/3rd-g ... -idle.html here is some info on it

don't think the high idle option works on the 7130 and for sure there is no tire size changing

is there a certain way to get the 7130 to show codes. I have some codes by the key clicking so I tried to read them with the programmer but it says no codes, If I say to clear them it will clear them so I cannot find them with the key

well I did gain some mileage but its easy worth the money just for the drive ability of the truck after you put one of these tunes in there. Night and day you won't be dissapointed

interesting but kinda pricey for what it does, or does not do

there is also the option of just getting a puck, my brother swears he save fuel with his, adds good power, the new ones have a dial to adjust power setting not just a toggle for 2 settings. might be something to look at. When I drive his it seems to have better power takeing off from a light, mine ...

well I think it still has to do with the extra presure from the tunes, that fuel has to go somewhere, hope so anyway I really hate the other option of injectors junk

yes that is what I do as well, try to have nothing running in the back ground. Turning off my wireless connection on my laptop seemed to help the most, but try to have nothing running in the background. you can try and try and then all of a sudden it works like nothing was ever wrong.

well asking that here might get you a bit biased answer or opinions. I would say that in my experience that the fuel savings are much smaller part then the gain in drive ability. With a bit of tuning even the tow tunes just make these trucks come alive. There are many programmers out there, I find ...

I am not sure but do not think that is your tc. kicking in and out. I have a tc lock switch and have locked it and still get that bit of a surge going down hill. with mine it usually happens for a bit just as I take my foot out of it. I think its just a case of the engine burning off the fuel that ...

that sounds like it would be a very nice kit. I am still trying to find out if using water would be of any use in a towing applications for hills. Not sure how much water you would have to haul along. Just turned my tune up to the extreme. Man does it run smooth, I love it, just can't tow much or at ...

1300 is nothing, i see mine pinned at 1500 very often. pulling a trailer up a hill is annoying because I have all this power to do it and have to let off the throttle so I don't melt something.
where do you take your heat probe from, pre or post turbo, mine is pre turbo in back half of the manifold ...