Tuning for new intake? -6.2L

[tompat]

Tried to use the search function and google but didnt come up with much.

Installing a cold air intake on my '11 sierra 6.2l this weekend and would like to know how to adjust the tune. I believe the tube going to the throttle body is bigger so obviously my MAF will be off. I just dont want my truck to run lean as my timing tables are already up there.

Any suggestions?

[04blackgmc]

Log STFTs and get them within a percent or so by adjusting the MAF.

Dial in the WOT region of the MAF with a wideband.

[HartRod]

So once you log the STFT, then you adjust the MAF table? Can you give a tutorial? Thanks,

[thahemp]

So once you log the STFT, then you adjust the MAF table? Can you give a tutorial? Thanks,

There are configs floating around here for logging. Do your logging, then multiply by half the STFT % error average into the MAF table. Repeat as neccessary. Make sure you have DFCO, COT, and dynamic airflow disabled. They will skew your trim data.

[HartRod]

There are configs floating around here for logging. Do your logging, then multiply by half the STFT % error average into the MAF table. Repeat as neccessary. Make sure you have DFCO, COT, and dynamic airflow disabled. They will skew your trim data.

Thanks! I have one config that has LTFT %, will that work as well?