Hey All,

Since it has gotten colder up north, my rx-7 has been running super lean. It is an 89 vert turbo 2 swapped with a FMIC, emissions delete and larger turbo(not sure what it is though). My turbo timer is listing my a/f ratio at 20 on idle and about 15 on full throttle. I'm still running a stock ecu, the BAC that doesn't have the idler screw (I forget the number). Is there a way I can get this back down without switching an ecu? Thanks

 

I WOULD NOT go by the AFRs on a TT.... get a real wideband.

A TT would give you calculated AFR and not actual.

 

The TT is probably closer to a narrowband....with numbers. Lol.