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Put "Ford EEC-IV self-test" into your favorite search engine. There are several sets of instructions (of varying quality) on the net. Or you can look in any self-respecting repair manual (including Haynes or Chiltons DIY manuals).
It's a good site with lots of Ford-specific EFI info, but you'll probably want to check back here for more complete answers to your questions. Remember, just because you get a code dosn't mean that the indicated part has gone bad. There are several other things that can cause a code...
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.