AIRD Air not diverting

[Seagrin]

I'm getting a error code 45 on my 1990 B2 that says...

Air Not Diverting AIRD - Air Injection.

I have full shop manuals but cant seem to located where or what this is.
Anyone have experience with this?
My guess is it's a vacuum line.
Thanks.

 

[RonD]

Well if you have a "smog pump" then it could mean the check valves are worn out.
Air Not Diverting AIRD - Air Injection.
Air injection was used to mix outside air with exhaust to reduce emissions at tailpipe, this was done with an air pump driven by the main pulley, it pumped air into each exhaust manifold though check valves.

But code 45 can also mean Electronic Ignition – coil primary circuit failure – Ignition Systems

How is the car running?

 

[Seagrin]

Thanks for the reply RonD.
I found that one of the vacuum hoses was cracked so I replaced it and code 45 is now gone.
Now I'm getting a warning code 41 which is "System Lean-Fuel Control".
This happens after I drive the car for about 10 min (no warning light when the car is cold).
Any idea what that could be? Not having any luck going thru the shop manuals.
Other than that it seems to be running pretty good.
Thanks again for your help.