2005 Buick La Crosse code po411

[quote:ed4012a396="al walker"]Computer problem
2005 Buick La Crosse 6 cyl Two Wheel Drive Automatic 73000 miles

my back yard mechanic told me to get secondary air pump only could get one from dealer , they had to order one, so found a used one via internet it doesn't look like what he told me to get
questions: could you tell me how to correct po411, show me a picture of sec air pump & where located on engine have 3.8 series 3 when reset codre light stays out 2 days then comes back on
also my air bag light comes on every 6 months or so stays on from 2 minutes to sev hrs this goes on several weeks then ok another 6 or so months2[/quote:ed4012a396]
First of all thank you so much for your donation.I emailed you the long trouble tree for P0411 and a diagram of where and what the pump look's like.There are a lot of thing's that code set that code you will have to follow that trouble tree that i emailed you.As far as your air bag light those are tricky to diagnose i would need the trouble code your air bag computer has to start with.