Code 1128 & 1130
 

I got codes 1128 & 1130 after replacing the AOS. I would reset and it would come on again shortly. Finally I got tired of resetting the codes. After a drop in temperature the CEL has reset and not come on again. Any suggestions on a possible temperature sensitive vacuum leak?

These codes reference that the enrichment limit has been hit on both cylinder banks; or in simple terms you are running too lean... My guess is that you have a vaccum leak - If you just changed the AOS... I'd go back and check all the hoses...