Constructive input would be appreciated. What might be causing these (2) CEL codes? I did not see these codes listed within s2ki.

I believe all components are stock; no aftermarket changes have been made.

The car runs fine with no perceptible performance change

(2) Codes read by Autozone:

P2A00
aaAF SENSOR RANGE PERFORMANCE- 11
Probable cause
aa1 Open or short circuit condition
aa2 Failed injector or regulator
aa3 Engine vacuum leak
aa4 Failed AF ratio sensor 11

P1187
aaFIT sensor circuit low voltage
Probable cause
aa1 Open or short circuit condition
aa2 Poor electrical connection
aa3 Faulty FIT sensor

Thanks!