Hondata

Car is an 03 rsx with kpro #4097, running k20a2 cold air cal.

First off, the car runs great, the only thing coming up is a cel light and kmanager displays error code 1166 - o2 heater. Fuel status says "open-error" and the a/f always reads 10.7.

During removal of the stock cat, the primary o2 ...