Ok Im wet behind the ears about this EFI thing. I just got my LS1 edit and I wanna play around with the fuel trim control. In the engine calabition edit in the fuel folder how do change the setup. I want to lean it out at idle. Forgive me if I am being vague. I hope this is a good enough explaintion Thanks for any help in advance.

 

If you can, put your screen back in your MAF or get used ends.

The main way to adjust your fuel Ltrims is to adjust your Injector Fuel Rate table. You scale the whole table by a %. For example If your Ltrims are around +7 when cruising, then multiple the whole table by at least 93%. By doing this, you allow more fuel into the engine.

After you get about 20-30 miles on it, make sure your Ltrims lock at 0 when your at WOT, then your ready for the dyno.

Do this before you get on the dyno to do WOT tuning.

 

I want to lean it out at idle. Its running pig rich??