Diablosport Forums

I like to load the latest tune, but with the 9R27 and the 5.7L R/T I find adjusting wot fuel has no impact to the tune, and I find the 93 tune to be richer than stock.

Using a wideband O2. I will need to go back to 9R26 to see if I can adjust the a/f ratio.

Anyone tested this? I am going to try the 9R26 version to make sure I can modify the fuel at WOT, but if 9R27 is required for the latest calids then I may be in trouble if the dealerhip updates my car.

Nothing changed in the tunes from 9r26 to 9r27...

Thanks, but with 9r27 adding or removing as much as 20% fuel has 0 impact to the a/f ratio according to my wideband O2. Going to try 9r26 when my car gets back from the dealership.

Can you write the tune with no changes, export it, then write the tune with 20% fuel added, and export that, and post them here?

How do I export it? Sure Ill give it a try. I dont like using older tunes, but its looking to me like its not allowing me to adjust the a/f ratio.