Platinumcd

Hello I have a 2015 mustang gt with after market headers and a air raid intake. The car was setup this way when I got it. It also was tuned with a diablo tuner which I have. Recently the dealership told me the car was running too rich and needed to be adjusted. The car does stall some at lights which I would think would be related to this. Can someone tell me what the air fuel ratio should be set to ? Thanks in advance.

JimC

As far as I know you can't change that with the Diablo (I know it can't be done with the SCT). It requires adjusting several tables in the tune. You need to update the tune with someone who does tunes with the Diablo

69mach1377

Do you have a local dyno shop with a good tuner available nearby?

Platinumcd

There are no local dyno shops to my knowledge but I will ask around.

69mach1377

I don't think the dealer can do it correctly given the headers. All they would do is go back to the stock tune. Better to run rich than lean though.