Quote: Originally Posted by
stroudtom7 
I'm running the DSP 93 oct tune unmodified and 93 octane fuel. I don't have a wideband installed if that's why you're asking about my A/Frs. Can the logged AFrs shown by the DSP be used for any guidence?
Is it possible that winter gas is junk?
I'd definitely get a wideband before trying to tune your car.