codes p0491,p0492 secondary air bank 1,2

[poppy400_0]

Need help with this situation .i changed the air valve which was no good ,i also change the air pump which was also bad and real loud on cold start up i cleared the codes ,but two days later the codes came back . could it be the hoses that are connected to the valve that runs around to the back of the engine? need help

[Zulu95]

$7 worth of hose cleared my SA problems and I did not use BMW hose so it should not come back for a long time.