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View Full Version : Where to start? 09 GMC 1500 5.3 6 spd



LaMountain
August 18th, 2010, 06:56 AM
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
August 18th, 2010, 07:01 AM
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)