I am a former Ford EEC and Senior Master Tech from 1984-2002 and worked on all systems from the old MCU, EEC I, II, III,IV and EEC IV/OBD2. After 9-11 I was a RADAR and SONAR Tech for the Coast Guard. I still dabble in the older systems. My wife has the Lincoln MKX with the 3.7 300+ HP engine. What a car !