how do i know if i'm running lean? keep reading about how running lean leads to kaboom, so with the new power fc installed how do i know it was tuned right? thanks.

 

get a commander and or dataloggit.

 

If you've got a commander, you can look at the knock setting to see if you're knocking bad. Anything below 50 is fine...anything above should be considered knock.

On a side note, I have a full exhaust, intake, ignition, non-sequential with FMIC and 850cc X 4 injectors...running 14~15 psi with a whopping 17 to 21 average knock.

 

i have a commander...so with the pfc w/ commander can i somehow get the air/fuel ratio?

 

you need to dyno the car with a wideband, are you part of the dyno day this saturday at ATP?

 

yup, i'm dynoing it this sat. from reading it seems people say wideband 02 is the only way to really know, but i was hoping with all the stuff the command outputs i can get a good ideal of how rich/lean i'm running.