ECU defination files ?

Question

CHIP tuning

Answer 1

Not knowing what you are working on. Cracking the code is the whole secret. Once in then there is how to decypher the tuning tables tire size traction control radatior fan on and off temps fuel mixture tables or Mapping can crank up engine performance at a price. Do something wrong the engine control unit is junk. I did cold air intake cat back exhaust and then tuned with Predatior Diablo almost 50 hp all those mods. 2006 Pontiac GTO