Hey guys new to the forum and I recently bought a pontiac mantana that is giving me 2 codes which are P0412 and P0418. I know it has something to do with the air pump because the pump does not turn on. I have changed the relay. What else can cause the air pump not to turn on. I think someone switch the fuse box because some on the junkyard have a fuse for the air pump and mine does not.I am stuck at the fuse box where else do these cables go to? Thanks in advance.
