Yo SPSmith,
Welcome & good job in filling in your Bronco's info!
FYI;
1989 Bronco Shop & Electrical & Vacuum Troubleshooting Manual (EVTM) by mrnewland1 ...Google Drive.. similar to 88 @
https://drive.google.com/drive/mobile/folders/0Bz1eScc6s4raOHd0WlVnMUw4WjQ?usp=drive_web
To post a pic from your PC, TABLET, etc., just below the reply box in lower right corner, click More Reply Options
Screen will change
See Attach files
pick out the pic
Click Attach This File
or click, Try our advanced uploader (requires Flash 9)
...
Our sponsor, Jeff at the Bronco Graveyard has offered a 2% discount to members of The BroncoZone for on line orders. To get your discount, enter the discount code BZMEMBER. Also you must include your BroncoZone User Name with the order.
http://broncograveyard.com
Here are some wiring diagrams (partial, 86 through 96) and Technical Service Bulletins, (80 through 96) @
http://www.revbase.com/BBBMotor/Wd
Post your idle issues in 80-96 Ford Bronco Tech Support section.
Please keep questions limited to one per post so fools like me don't get confused.
Try a Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19 @
http://broncozone.com/topic/14269-code-reader/?pid=74587&mode=threaded
Looking forward to pics!