I have an LQ4 and a 4L80E in a 91 K5 Blazer. Speartech did most of the mods to the PCM: Changed the 4L60E to the 4L80E I was using, Gear Ratio, Tire Size, Anit theft delete, deleted rear O2 sensors, etc....

Setup has been running great for years but installed long tubes the other day and have to send the PCM back to him to ignore the related codes. Since I'm sending the PCM back to him is there anything else I should have him do while he has it?

Some things that I have noticed over the past couple years of driving:
1) Could possibly do without torque management
2) DBW pedal is REALLY sensetive for such a bouncy truck
3) 4L80E doesn't allow the engine to put down power until well into second gear

Any suggestions on things to do while it's in the hands of someone who knows what they're doing?

 

-Delete abuse mode
-Remove at least 75% torque management. If you have traction issues on a shift, its is actually helpful.
-Bump the max TCC duty cycle to 100% and min to 99%

 

Anything to wake it up more on the low end a little? It's mainly an off-road only truck (trails not dragstrip) and looking for some more low end grunt for rockcrawling.

 

abuse mode is the big one, its what makes it slow off the line, torque management only happens at the shifts.

 

if its an 80E i would delete all tq management. there is no reason to have it in there at all.

 

Anything else that would help the 6.0L with pacesetter longtubes?