Haynes shows no Secondary Air Injection System on my vehicle for P0410 Code on 1999 GMC Jimmy

I have a P0410 code , but , Haynes manual shows I have no secondary air injection system . I can't use your normal answer because I don't have a secondary according to my Haynes manual .
Now what do i do ?

Asked by for the 1999 GMC Jimmy
the haynes manual is not always right. look under the front either on the drivers side or passenger side for the air pump. If there is a code, then there is seconday air injection.

i have the same problem p0410 i put alot new parts for nathing all i need is a 02 sensor the one on front of cat pasanger side easy fix keyrogato
2 answers 1 comment
I have a 2001 Jetta with a 2.0 engine AEG code and there is NO secondary air filter either, there never was, no empty holes, or by-passed hoses. I have a fault on my ECM and it won't pass inspection B\C of this ... what do I do now???