Sorry, last question. MPG Booster tune performance Vs Stock Tune?

If 9r19 works than 9t23a will work? Need to get the PC interface kit, will I see much improvement (as in MPG) will this new MPG booster tune?

Thanks

About 2 years ago, box has U7194 07-09 GM Truck (new body) and 06-09 Corvette on it, 9r05a was on it. Small sticker has the #217557, is that the S/N? How do I know if it has enough memory?

What improvement will I see over my Rev. 9r05a currently being used on my stock 07 5.3 Avalanche (87 tune). I thought 9r05a was the MPG improvement for trucks?

Thanks

On my 07 5.3 Avalanche I ended up with the same thing on the factory tune, -5 on the slope, this was on a 40 degree day. I'm not 100% sure the diablo 87 tune is stronger than the gm factory tune, right now I'm giving the edge to the stock gm tune. I do like the ability to modify the factory tune ...

Ok, warm air is less dense, so it has less oxygen per volume=less fuel

I'm clear now.
Thank you

As the temperature gets warmer, LTFT's will go more positive (leaner) correct? Is there a rule of thumb, like for every 10 degrees warmer LTFT will move X amount?

Thanks

I've got a 6 month old u7194, the time TCM support is available it will probably be outdated, maybe it already is. How does one tell if the u7194 is outdated, by S/N?

Timing at partial throttle would be one of the parameters that is modified in the 87 tune then?

Yea, comparing gas mileage is very difficult. When I first installed my 87 tune I thought I was doing a little better on gas, but looking back I think my driving style slowed up because I wanted to see a gain. I drive the same 20 mile (one way) highway route every day, when I went back to the stock ...

Totally stock 07 Avalanche 5.3, 7194 9R08.

I've been running the 87 tune for over 3 months now, LTFT's good. Taking the truck in for service, so the other day I went back to the stock tune. I imediately notice more low Rpm torque. WOT, not sure I can tell any difference. The stock tune also edges ...

No reason to mess with it then.

Thanks

07 5.3 Avalanche, U7194. My cold (open loop) idle is too high, truck wants to take off. Does the idle adjustment on the Predator only affect the closed loop idle?

Thanks

What age 7194 hardware is outdated? I'm using hardware that came with 9r08 on an 07 Avalanche, no problems. But when TCM support comes out is the hardware new enough? Is there a hardward S/N that can be checked or date manufactured?

What age 7194 hardware is outdated? I'm using hardware that came with 9r08 on an 07 Avalanche, no problems. But when TCM support comes out is the hardware new enough? Is there a hardward S/N that can be checked or date manufactured?