I have a 2year old predator. And Im quite sure that it has the update of 9r17.. What updates are on the current 9r18 that would be worth while? My truck is an 01 2500hd 6.0l 4x4 etc.. GMC.. Thanks for the help!!

Wait for the tune to settle in a bit. Probably about 150miles etc. Then do a freeway cruising datalog and check your LTFT- Long term fuel trims. The will have to be ajusted slightly. THen you can mod the tranny shift points how you like etc Just my 2cs'

I have an 01hd 2500 6.0l with 33's. I gained 2mpg around town and 3 on the highway. It does take a couple of tank fulls to realize the gains and get the ecm to settle in!!! I can get 19mpg on the highway doing 65mph and normally get 14 in town. I would think it needs a tune up/ New o2's and maybe a ...

You will need to run the tune for about 300miles. Then do some datalogging and make sure to adjust your injector pulse width. Read up in the stickies! Then you will want to adjust your shift/transmission settings to your liking. Then do a constant load log and save it to your pc, then a WOT log and ...

Thanks will be in contact soon!

Ok thanks 06MonteSS!! I will have to do a couple dataloggs in the next week and send them to you to take a look?? I would guess you have the ability to adjust some of the part and Wot fueling that cant be done with the tuner?? And make more adjustments to the TM and PE settings? IM guessing that ...

As the title says, just wondering how much would be to gain with a custom 87 octane tune? Im using the predator 87 tune and have tried the 93 tune. Dont see a huge diff between the two, I have modded the 87 tune a little. Im not seeing the advantage of the extra cost of premium fuel especially since ...

Just wondering if there will be any new tune parameters? Spark or timing changes or firmware updates etc. Its getting to be an older model now, and with the trinity out? Im still hoping to see updates to the programming. Like the mpg tunes etc. Thanks.

Just wondering if there is going to be anymore updates for this tuner?? Thanks

Just wondering if you can use DSlogredux WOT function and conversion with the U7198? Most recent editions etc. Did a log of my cruise and LTFT and checked with Ds and it wants -1% on the injector slope. But when I go to check the WOT burst section it says nothing? Or no WOT datareduction U7198/79/92 ...

Turn off all the torque managment and see how it does? What gears you got? What tune are you using? It is only a 4.8 but it might spin them a little better once this is tuned or you have larger tires?? It is the nature of the LS engine to be a little sluggish Untill 2500+ rpm though.?

Thanks for the reply!! Im used to tuning my old tbi with Moates software etc. And always liked to get the longest logs I could. I know that the 15min is fine but was just wondering. Its nice to beable to tune your freeway LTFT and then go and get a WOT blast on the same log etc. Thanks again!! But ...

No worries!! Im not sure about the stock tune mods? But I did turn it all off in the 87 tune and also modde the 87 tune to my liking etc. Hope this helps??

Just wondering if there is anyway to get a larger than 15min datalogg on the newer u7198?? Or can you hook it up in parellel with a laptop? Thanks.

Just wondering if Im reading this right. If I want to lean out my Pe setting at WOT I would go Negative on the tuner Right?? I know that in order to compensate for the LTFT you go Negative if it was in the plus- I had to go -4 with the injector slope and LTFT at WOT are at 0. But In WOT the PE ...