iowaman

Getting these 2 codes from the OBD-II scanner- My next project, to replace or have someone replace the air to fuel ratio sensors. I am looking at ordering both sensors directly from Denso, I heard the Bosch ones are not recommended. I understand this is not a huge deal but did you notice any improvement in performance after replacing these sensors? Is it ok to keep driving with these codes until the CEL comes on or should I make this repair a priority?

Someone suggested cleaning the mass air flow sensor, I took it apart and I am gonna spray with some mass air flow sensor cleaner and see if it makes any difference.