yes, based on the knowledge I have got since over one year working on this engine, I'm with you at this point. I was also in the beginning, but others told me that the EEC won't do anything else with or without the whole emissions control hardware. So I've ignored it and searched for other reasons.
After reading this very good book, I've sent scans above, I'm also convinced that it makes a difference...in particular if I consider how important are the emissions systems in the USA...it would be strange if the EEC won't care if it works or not...
As I have done a complete new wiring harness, I don't have added cables that I don't need. So by having a new EEC connector with more than enough empty pins left over it will be no problem for me to add the resistors and check what's happening.
I've got very deep inside how the EEC-IV is working, so let's call this whole thing a lesson learned and I hope that adding the resistors will solve the rich run and idle problem. But i still will check the TPS range tomorrow.
1986 Ford Bronco XLT 302/347 stroker with 351W EEC-IV and 351W factory cam C6 gearbox. Jeep
1986 Jeep CJ7 256 I6 with T5 gearbox. Buggy
1972 HAZ Buggy 122 Ford Cologne V6