Those codes are for your upstream oxygen sensors stuck lean. Can your scan tool look at live data? If you can, look at the long and short term fuel data on banks 1 and 2. Also look at the the mass air flow data at idle with all loads off example, A/C off, lights off. Post your readings on here to get an idea as to what is going on.
You could have a vacuum leak, faulty mass air flow reading or low fuel pressure. It is very unlikely but plausible to have two upstream sensors stuck lean. Let us know what those readings are to get a an idea as to what is going on and any parts you have already replaced.
Tuesday, February 12th, 2019 AT 10:35 PM