Metering Oil Pump (MOP) Testing/Replacement: Stock 93 Touring FD

Status 4/9/02: Removed the air box and all related hoses. pic
Status 4/11/02: Found MOP wiring harness, tested with ohm meter - it's bad. pic
Status 4/12/02: Removed air pump. pic
Status 4/13/02: Removed alternator. pic

Just noticed: Is this vacuum line supposed to be open like this???