First time tuning

[iDEALS1]

I have a 2000 Silverado 4x4 with a 6.0 w/LS3 heads and 4L80e. List of stuff done to the truck is as follows: Cam 228/234 620/632 111LSA, CAI, LT headers, 3600 Triple disk Circle D converter, stock 4L80e, 3.73 gears, and 32" tall tires.

The trans shifts really lazy and converter unlocks at 0% throttle while cruising since the 80e swap. I did some research and made some changes to the trans tune, but haven't pushed the file to the vehicle yet. Could any of you take a look at this file and see if there is anything I should change or wouldn't be safe for a truck with a stock 4L80e. I am going to do some type of forced induction down the road, but would like this thing to shift way better. I appreciate any help!




Z71 6.0 4x4 4L80e.hpt

[simman22]

I looked it over for you and on the tcc 0% unlock, I believe what you have fixed your issue (since it?s been a week) but I normally zero all 4 of those. Have you wideband tuned it? Looks like you are running it in MAF only as well. Are you using flexfuel injectors? If so, is it still a returnless setup? I ask because of the injector data you have in it is a little off.

[iDEALS1]

I ended up going back and zeroing all of the values. The truck does have flex fuel injectors(12609749). It is a return system now. Fuel pressure is set at 58 psi.

Thanks for the help!