The fuse ( 40 amp I think ) should be in the passenger side under hood box, you will need to remove allen bolts that hold the cover on.

The air pump should run at cold start up for a minute or so then for a few seconds once the engine is warmed up and you come to a stop. ( This second run looks for the O2 sensor voltage to drop when the pump is running. )

Search this site for air pump / emission failure. I think your engine type has issues with the air passages in the head clogging with carbon.