yes
yes
There is no owners manual shown for a 2004 Ford Explorer Sport on Fords website The 2004 Ford Explorer owners manual shows ( fuse # 24 - 15 amp - cigar lighter , OBD II , neutral tow ) The 2004 Ford Explorer Sport Trac which has the fuse panel on the drivers end of the dash where the fuse panel cover is visible with the drivers door open shows ( fuse # 17 - 20 amp - cigar lighter , OBD II )
The OBD-II connector on the 2006 Ford Explorer is located above and in front of the parking brake release, behind the dash trim.
There is no OBD plug as found on OBD2 compliant vehicles. But there is a plug under the hood. Click the links.
Obd - 1
According to the 2004 Ford Explorer Owner Guide : In the fuse panel below the drivers side of the dash : ( # 24 is a 15 amp fuse for the cigar lighter , OBD II , Neutral Tow )
Yes
OBD 2
A 1994 Ford Explorer is OBD - I / EEC -IV , there is an EEC TEST connection in your engine compartment by your power distribution box
The 2004 Ford Ranger OBD 2 port is under dash below or left of steering column
The 2007 Ford Explorer OBD 2 port is under driver side dash left of steering column
I don't believe a 1994 Ford Explorer has a knock sensor - OBD I / EEC IV system