There are a lot of inter related software issues once certain codes are set. I wish all the strategy was published, but it isn't.

I look for cross similarities when judging codes and the similarity between your codes are that the first codes say that an adaptive limit has been reached. This adaptation is done through O2 sensor monitoring of the final results of the fuel calculation.

The secondary air code is set when the air pumped into the exhaust doesn't drop the O2 sensor voltage to below 40mv in a short time. It is also known that the controller watches the ability of lambda correction to affect the low O2 sensor voltage cause by all the air. There is a possibility of lambda correction strategy change do to the adaptation limits being hit.

I would fix the performance problem first. The seconadary air is strictly emissions and is an intrusive test that is failing using sensors that are in default.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician