hi guys,
i need someones advice regarding replacing these air fuel sensors on 2002 ES300...

trouble code of :

P1135 - Air Fuel circuit heater malfunction bank1 sensor1

P1155 - Air Fuel circuit heater malfunction bank2 sensor1

ive replaced 2 pieces front sensors at first brand new ... yet the engine warning came out..

then 2ndly i replace 2 rear sensor for near the catalic converter from another car which i have a spare.

yet after erasing using diagnose computer the same trouble code came out same as the above...

can anybody give me an advice regarding the problem im having?
i cant seem to get rid of the trouble codes...

thanks

rockerfella174