2002 toyota camry. change af sensors light keeps coming back. codes p1135 & 1155 on 2002 Toyota Camry

i've check the fuses and the relays everythin looks find. so i change the computer under right side panel. change the af sensor 2 times, and after reseting the check engine ligh it comes back after 15 seconds. can anyone give me an idea what could it be? thaks.

Asked by for the 2002 Toyota Camry
codes only identify circuit issue not always sensor seek diag and est