Code 1 is No Codes stored [ simply meaning you have successfully cleared the faults from the memory of each module]

Now drive the car and go back in a couple of days ..

Don't wait for CE lamp, as that only comes on after other module
detected faults talk to DM and DM decides if that fault will effect emmissions..if it does not , CE won't come on even if other mods have stored codes..[that is why we go to other mods when you get ignition/fuel related probs that finally get to CE/emmissions paremeters]