[Craig K.]

If you have a down stram O2 sensor (total of 4), then you have OBD II. If you have only one O2 sensor per side (total of 2) then you have OBD I.

Some companies started OBD II requirments earlier than others, so perhaps Ford had started on a certain engine/tranny package. But most OEM's had waited until a model year and then changed over the whole platform.

My 1995 Cobra has one pair of O2 sensors, so it would be considered OBD I. My 1996 Cobra had 2 sets of O2 Sensors, so it would be considered as OBD II.

As far as your problem goes, have you had any luck since your last post?

Also check and make sure the wires in the connectors which you are plugging into are truly makeing a connection. It is not uncommon that these are damaged during in plant testing on the assembly line (don't ask why I know this). These wire connectors are not ment to be used many times, so they are usually not made of the best material.