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Discussion Starter #1
Where is the eec? How does it get its ground. 87 bronco 5.0
 

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You might want to grab a manual at some point, but...

The eec is behind the drivers footkick panel behind a metal cover. The ground comes from two sources, one is the body/frame ground and the other is a small black wire that goes directly to the negative terminal of the battery. The one at the battery needs to be connected to the battery. For some reason it is that sensative and can throw your emissions off.
 

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I have a manual but I could not find its location in the manual. this excites me cause I found that black wire greened out and fixed it yesterday. I have to reinstall the TB and try to fire her up. The injectors were not firing and the only code was TPS low voltage but it tested good. I hope this fixes it. Thanks for the info.
 
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