Ok, I have a 99 Explorer XLT, SOHC, 78k, I have read every message posted on ECL, idle, 00M12 kit, flashing ECL etc... I have cleaned every sensor mentioned, installed my second 00M12 kit (2days ago), new plugs & wires (1 month ago), new IAC, 4 new 02 sensors(2weeks ago) not sure of what else...