I assume you want to operate as a complete engine control system so you need the EEC to interface with the following,
inputs,
1. engine coolant sensor ECT.
2. air charge sensor ACT.
3. 2 ox sensors OX .
4. ignition system TFI.
5. mass air sensor MAF.
6. egr valve and control hardware EGR.
7. throttle position sensor TPS.
8. speed sensor on the transmission VSS.
9. canister purge valves CANP.
10. fuel injector control.
Without all the communications, the eec will not present the correct running overall control.
This may or may not result in fault codes stored in memory and altered running parameters if the fault codes take the computer to the extreme ends of the program tables in an effort to correct the problem.
The EEC v has the ability to learn operating parameters both forward and backward to the range of about + or - 10%.
This ability giveS the system a way to compensate for hardware tolerences, fuel differences, air temp changes.
This peticular engine setup does not have the direct ability to adjust for barametric pressure changes as many other Ford engine systems have by using either a BAP or a MAP sensor.