I have to agree, just get a new O2 sensor, they typically last a very long time unless your like me and like to mix in a little leaded racing fuel occasionally. You mentioned they thuoght it was sensor one, I just ran both codes you gave and they do both pertain to sensor 1, that sensor should be located on the rear exhaust manifold between the head and the firewall, I believe its smack dab in the middle of the manifold if its a 3800. You may also consider purchasing an O2 sensor socket as this will most likely make your life easier!
Chris White
1989 Turbo Trans Am
2002 Grand Prix X-P
2002 Saturn SL1 (Fear The Hampster Power!)
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Chris White
1989 Turbo Trans Am
2002 Grand Prix X-P
2002 Grand Am SC/T
2002 Saturn SL1 (Fear The Hampster Power!)
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