does anyone know what the A.I.R relay does under the hood.

I don't think I've ever noticed that. Is there a fuse there? Maybe an interface for onboard air??? I'm curious now

i was screwing with the fuse block today. There isnt one in mine. But i dont remember if there was. So i was wondering if someone else has it there. Do me a favor take a look.

A.I.R. is for gassers, it's for the Air Injection system(work's much like EGR to cool combustion chamber temps and reduce NOx)

thanks blueburby. Yeah I took a look under my trucks fuse box and found nothing of that sort. All the time I've spent pustsing with that thing and never noticed it. go figure.