WHERE IS OBD2 SENSOR DOWN STREAM LOCATED AT ON 1998 FORD EXPLORER?

WHERE IS OBD2 SENSOR DOWN STREAM LOCATED AT ON 1998 FORD EXPLORER?

No such thing… The OBD II is On Board Diagnostics series II. Are you referring to the oxygen sensor? Look down from the exhaust manifold in front of the catalytic converter. Should be around there. PITA to remove and replace.