Engine is the port injected 3.6L VVT (DOHC). I was driving around scanning with TorquePro and noticed my car runs unnecessarily rich, I was getting a commanded 14.1 AFR while cruising and 11.9 during power enrichment. Shouldn't those numbers be closer to 15 for fuel economy and mid 12s for power?
Is there a simple way to bump up the commanded AFR and see if there's improvement? Right now I'm getting around 18 cty/29 hwy and if I could bump that up an mpg or two (especially on the highway) that would be awesome. Also open to DFCO suggestions.
cp-the-nerd_09-Malibu-LY7_v3.2.hpt