Where to start? 09 GMC 1500 5.3 6 spd

[LaMountain]

Ok I have my EFI Live and I read my ECM and TCM. I made some changes to my shift points and recalibrated my speedometer for bigger tires. Now where is a good place to start to get more performance from the engine, not to drag race, just to run a little stronger?

Thanks
Pete

[joecar]

Hi Pete, welcome to the forum :cheers:

First step is to take as many logs as you can, view them to understand how your powertrain is operating.

While viewing your logs, use the scantool->tunetool pid linking feature to highlight the operating cells in the various tables.

Some further reading is required: Tutorials (http://forum.efilive.com/forumdisplay.php?17-Tutorials)