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no KR whatsoever

I did some tuning on my friends 06 truck with pacesetter long tubes and y pipe. And a CAI. I copy and pasted the fuel and timing tables of a 91 octane truck tune. Now the thing runs worse. Its slower...

I have tuned my truck on the dyno already but it was very difficult to get the AFR ratio to stay steady. I am thinking about turning off the MAF sensor. What all do i need to change and how much...

I'm putting the finishing touches of tuning to my truck.
"Finishing touches" A.K.A. nitrous tune ;D

99 silverado 2wd RCSB 5.3
MTI 222/222 .566/.566 112lsa
ported heads milled .175
Dougs long...

I just bought a shift light from autometer. shift light only. It doesnt have any instructions for it, but it has a small two prong female plug for it. Is there a way I can hook this shift light up to...

I have a built 4l60e with a 3200 stall, in my tune I tell my transmission at WOT to upshift into second at 6700. But it always shifts on its own at about 6400-6500. Why wont it rev up that high? This...

Thank you very much for the help.
Are these codes going to tell my computer to change things on my tune?
If so, should I tell my computer to not even recognize these codes?

is it possible to tell the computer to enter closed loop sooner then?

I just got done driving my truck and it set off two codes.
1133 - HO2S Insufficient Switching Bank 1 Sensor 1
1153 - HO2S Insufficient Switching Bank 2 Sensor 1
what does this mean? what is...

I just got done driving my truck and it set off two codes.
1133 - HO2S Insufficient Switching Bank 1 Sensor 1
1153 - HO2S Insufficient Switching Bank 2 Sensor 1
what does this mean? what is going...

I dont understand what is going on. I just put my new motor in and I have been tuning on it for a while, but..... my converter is acting up.
When my AC is on, the converter locks up like it should....

I am trying to find someone with about the same size cam so i can get an idea at how much timing i can run.

I am fairly new to tuning and i have used ls1 edit before but i decided to go with hptuners instead this time.
Anyways, i am getting ready to tune my truck motor that i just rebuilt.
My mods are...