Cadillac Seville / Cadillac Eldorado Forum Discussion, P0441 Evap purge flow in Past Cadillac Vehicle Discussion; CEL light comes on, code is in history, all vacuum lines are snug and tight, i clear code, CEL goes ...
Automobile(s): White Diamond '03 DHS (with DTS floor shift)
Re: P0441 Evap purge flow
I think that is one of those codes that is "current" only while the PCM is commanding the purge solenoid open and it fails. Once the PCM removes the purge command, it goes to history. At least that's my suspicion.