Quick question for ya'll, My wait4me tune has been running at a 11.9:1 AFR for a couple of thousand miles now and I am needing to send it back to Jesse to get corrected. In the meantime, with an AFR like this, will this have hurt my O2 sensors? Cats? Or will it have washed down my cyl walls and thinned out my engine oil? I tried sniffing the dipstick but couldn't notice any odor of gasoline or anything. Also my gas miileage went from 20-21 MPG to 14-15 MPG with the tune. In my other thread in the tuning section I posted my wimpy dyno numbers Time for the LS6 cam and spring install, then dyno, then send PCM back to Jesse.

 

the only thing it might hurt are the cats and they hold up to alot. the biggest thing its jurting though are your et's if your NA

 

I've run as low as 10.0 to 1 during tuning and typically in the mid to high 11 range under boost. When I took the cats out they looked brand new (8000 miles on the truck).

 

I'd be worried about too lean than too rich. I run lo 12's with my Radix as have many others. R/