I've had the Check engine light on for the last 3-4 days and recently got the codes scanned at Schucks that say

PO491 Secondary Air Injection System Insuffiecient Flow (Bank 1)

PO492 Secondary Air Injection System Insufficient Flow (Bank 2)

I need help on trying to fix the problem myself before paying for a real mechanic. Any suggestions?

The car runs fine! Its a 2001 325xi wagon with about 34,000 miles.

Thanks

Mark