I have three codes for my 98 ss camaro:p0418 sec air inject system relay A malfunction, I need to know were is this relay. and p0412, p0103.

 

I'm not 100%, but if I remember right, the check valve that comes off of ur secondary air pump is showing faulty. This SAP was designed to mix 'fresh' air with the exhaust to help pass emissions. I had this on my C5, and seems to b common


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Pretty sure its in the underhood fuse/relay box.

 

I did not see any relay that said air inject system relay?