Electrical 90 lx cant find service port

ReyRey

New Member
Nov 4, 2018
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I cant seem to find the service port to retrieve codes checked all over engine bay however i did find these loose and cut wires
20181104_224523.jpg
20181104_224514.jpg
20181104_224536.jpg
 
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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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See if you can find these wires by color
89 through 95 cars have a working Check Engine light. Watch it instead of using a test lamp.

attachment-php-attachmentid-57945-stc-1-d-1240584741-gif.gif



The STI has a gray connector shell and a white/red wire. It comes from the same bundle of wires as the self test connector.
I suspect someone has connected these wires up or just cut them off in an attempt to make the car run.
Is it originally a V8 car?
 

ReyRey

New Member
Nov 4, 2018
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I can't find the black w/white wire
Checked Vin and is an original v8 car
 
Last edited:

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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polk county florida
It's there you'll just have to dig for it, I doubt they took the harness apart to remove it, likely it is discolored from heat cycles and age.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
13,899
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polk county florida
Hunt around the web and find some wiring diagrams for the 90 model year, veryuseful.com is a good place to start, I like printed stuff but I'm a little old. You will need to trace that harness to put the port wires back together.
 

Blown88GT

Founding Member
Nov 13, 1999
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Look for the shape of this connector. Nothing should be plugged into it. It's nothing in your pics.
I see a few cut off wires. Why would anyone cut anything off?
attachment-php-attachmentid-57945-stc-1-d-1240584741-gif-gif.gif


88-91_5.0_EEC_Wiring_Diagram.gif
 
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ReyRey

New Member
Nov 4, 2018
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Texas
Look for the shape of this connector. Nothing should be plugged into it. It's nothing in your pics.
I see a few cut off wires. Why would anyone cut anything off?
attachment-php-attachmentid-57945-stc-1-d-1240584741-gif-gif.gif


88-91_5.0_EEC_Wiring_Diagram.gif
I have looked for that plug my guess is it has been cut off at some point gonna have to find a donor car so I can get that plug and wire it in myself and the wiring diagram is a huge help thanks
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
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You gotta find an old Ford in a junkyard.
If you do, use this splice:
Heat Shrink Solder Sleeve Butt Splice Wire Connector Waterproof
s-l1600.jpg
I do not suggest using these anymore after I had multiple failures and was forced to open my wiring harness and replace every one of them. The solder joint would brake and give an intermittent connection, I simple use a cold weld connector and heat shrink all connections now.
 

jrichker

StangNet's favorite TOOL
SN Certified Technician
Mar 10, 2000
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There is a repair kit consisting of the plastic connector shell and the necessary short pigtail leads with the terminals crimped on. It is available at Advance Auto Parts or AutoZone or maybe O'Riley's Auto parts. The most difficult thing will be getting the parts person steered in the right place to look it up... Electrical pigtails seems to ring a bell for me...

BWD EEC Test Plug Connector Part # PT763

https://www.autozone.com/catalog/common/enlargedImageOverlay.jsp?currentImg=&prodDescription=Duralast+EEC-IV+Test+Plug+Connector&imageURLList=[https://contentinfo.autozone.com/znetcs/product-info/en/US/wl2/429/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/2/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/3/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/4/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/5/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/6/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/9/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/11/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/13/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/10/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/12/image/,+https://contentinfo.autozone.com/znetcs/additional-prod-images/en/US/wl2/429/8/image/]&prodImageURL=https://contentinfo.autozone.com/znetcs/product-info/en/US/wl2/429/image/

Foxbody Diagnostic connector



Foxbody Diagnostic connector close up view[/b]

 
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