installing intake forgot to put the intake sensor back on check engine light came on...so disconnect the battery and reset the ecu...currently running stage 2 on my cobb ap...do i have to re-upload the map or it still working ?

 

Was the Stage 2 your basemap, or realtime map? If it was your base map then you don't have anything to worry about. The base maps are always stuck on your ECU. If you were running a Realtime map on top of it, then that got wiped out.