Has anyone ever heard of injectors being out of sync or need to be relearned? The reason is that about six months ago had all eight injectors replaced, new high pressure fuel pump and fuel system flushed due to metal filings through the fuel system. Now has the check engine light again and the dealership tells me the right bank of injectors need to be relearned. I have a 2020 GMC Sierra 3500 Denali with approximately 46k. Any suggestions would be greatly appreciated.