I reset the code and it ran clear for a couple of days. It came back this morning (P0492) secondary air bank.
However, is this a true fault? The secondary air only runs for a couple of minutes. My code appears at least 15 minutes into driving. The air pump is not even running at this point. Is this a false positive. Could it actually be a faulty O2 sensor?
On my Z3 had simialr problem and SES came on with in first minute of cold start. This was a bad hose.
I just don't think it is an air leak when the pump isn't even running.