2005 GMC Envoy

2005 GMC ENVOY
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MW904
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Engine Performance problem
2005 GMC Envoy Four Wheel Drive Automatic

I got a diagnostic test done and it read that there was a secondary air flow malfunction. What does that mean and what do i need to get it fixed?
Feb 13, 2009 at 2:57 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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