Hi,
I just registered on here, after reading much of the thread. I mean, it's huge, so I read less than half, but I searched it for info I was looking for, so forgive me if I'm asking questions that have been answered.
First, about me: I have a stock
2013 2500. It's a 4x4, 4 door, long bed, with the 68RFE and tall gearing. Not sure, off the top of my head, of the exact ratio, and I'd have to go outside to look. I traded my '02 to get this, and have not been satisfied. The '02 was a manual 6 speed, but otherwise identical - even color. It had the suicide doors in the back. Last year of that body style. It was pretty well set up, but enough about that. I bought this 2013 with 20,000 miles, almost a year ago, and the cel came on before I could get home. In the first three months, the dealer had the pickup for one month, total, and over 2,000 of the 5,000 miles I put on it were from going back there for service. Unhappy much? They replaced the scr, DPF, and def injector, rebuilt the rear differential, and fixed the tpms. I never got the same codes twice. I'd take it in, drive a loaner for a week or two, get a different code, take it back again. After three months of that, I took it home and got 13,000 troublefree miles out of it, until.... the cel came on. Different codes than before, but then... the countdown. I had just scheduled to take it in for the recall work (alternator diode and the excessive nox emissions that cause failures), but my dealer is 200 miles away, and I have 170 miles until I'm limited to 5mph. I'm not an arsonist, and I'd take a loss if I sold it, so it has to be fixed. As you probably know, only the dealers can reset these from the countdown. I did find that with 189 miles remaining, I disconnected the battery for a while, and it came back up to 195 when it was reconnected. Might be useful to someone on the road. So, in driving it (and comparing to my '02, which was my dream truck), there are several issues with it, that just bug me. First is the exhaust brake. Yes, it functions as designed. The problem is that when I turn on the eb, it changes shift strategies. It works good in tow mode, with a big trailer, but if I use it in regular driving, the torque converter unlocks, engine drops to idle, and the truck coasts. With the eb off, the converter stays locked, and if I let off, I get some compression braking. In top gear, the eb slows you down to 55, then the converter unlocks, engine drops to idle, and just coasts. To shift down usually takes three or more pushes of the - button to get fifth, then it shifts down, locks up, and works like it should, if the hill is big enough. If not, it slows you down, eb cuts out, converter unlocks, etc. the other thing that bugs me, besides the obvious problems, are the mirrors. The side mirrors make things look much closer than they are. Backing up to something, it looks like you're running over it, when you're 4 feet away. Enough complaining, and on to the topic at hand.
It's great to see that there's another tuner out there that can unlock the ecm, and I'm more excited to see that it can also tune for the transmission. There's my first question. Can we tune it so the exhaust brake works? No fuel, and exhaust braking at over 1,000 rpm with throttle off, converter lockup, downshifts at, say, 1,150? Without tow mode? With tow, higher upshift/downshift shift points.
That has been my biggest complaint about the pickup, besides those madated by the EPA.
Next, mileage. You saw what I'm driving. Average driving for me is mostly highway. EVIC showed 20.5, my pen put it at 20.1. Best trip was all highway, under 55mph, hilly, sea level to 1,200 feet, with EVIC showing 28. My calculations put it at 23.98, which is everything I'd hoped it would be, +/- .02 mpg, if you know what I mean (that close to an even 24). That was on summer fuel. Right now, it's mostly around 18 on the EVIC, but gets over 20 on long highway trips. Are others doing anything similar, or do we all tune for hp, and burn the fuel to get it? I did read the posts about better mileage with hotter tunes, but in general, how has the Ultra affected your mileage? Has anyone done better than 24mpg, or close, with a similar truck?
Next question: traction control. Hate it. If I could eliminate it, I would. I never want it to interrupt my driving, and certainly not with a yellow light constantly on, on the dash, saying it's off, and another light that comes on when it rudely interrupts my driving, anyway. Not when I'm carrying momentum up a steep, icy hill, and it cuts power and hits the brakes. Can the Ultra disable tc/esc, and the "I can't drive" light? Forever!
Finally, I'm not looking for horsepower. I don't want to fix a transmission. I like the smoothness of the engine and the fuel economy. I like the torque and pulling power, and put it to good use, but I don't want to rod it out; I need to be able to drive it. That said, I have a few more questions.
Does the RaceMe unlock the ecm permanently, so other programmers can be used, as with the Bully Dog?
Can anyone recommend a tune I'd like, addressing exhaust brake, traction loss of control, and mileage/ driveability, if it does all that? Or, a box capable of those things? Including the obvious problem items that led to the 5mph countdown. I figure that's got to go.
Has anyone done a meaningful comparison between this and EFI Live?
Features, abilities, available programming?
Thanks, and sorry about the meandering and ridiculously long post, re-asking all these questions.
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