Im about ready to fire it up and need someone to look at my tune to see if I have it setup right. I changed the firing order in the tune but im wondering why since I followed these pinout diagrams and they show 4-7 and 3-2 being swapped when I repinned it to the PCM. So if I followed these diagrams do I still need to enter the SBC firing order or do i leave it LS1 because I swapped the pinouts? Im trying to firing it up TONIGHT so quick help would be great!






I can email anyone the tune file so you can see if im safe to fire it up tonight!

 

Swapping the pins should allow the PCM to fire the correct injectors/coils with the LS1 firing order. I don't know of any software that allows you to change the firing order in the PCM either.

LT1: 1-8-4-3-6-5-7-2
LS1: 1-8-7-2-6-5-4-3