I was thinking, I have had a dip on 1st start of the day....If u rev it a bit the RPMS dip below idol which seems to be around 800. I haven't pin pointed it BUT I have also had once a hard time fueling up and another time rough start up after fueling... Could be a purge valve or canister valve solenoid . Uummm... I'm not sure maybe the time is off a tooth or 3 and its retarded?
EDIT: I forgot to read through the rest of this thread .. I see we found the issues!