1991 4.0-Accessing EEC-IV Diagnostic Connector | Ford Explorer - Ford Ranger Forums - Serious Explorations
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1991 4.0-Accessing EEC-IV Diagnostic Connector

Foopherenz

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May 16, 2003
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City, State
Patchogue, NY
Year, Model & Trim Level
1991 2-Door
OK I'm being dumb. I'm normally pretty good with vehicles, but my brain isn't working.

I have a 91 Explorer with a 4.0 (recently purchased). My wife drove it today (Mistake). She said it stalled twice and the check engine light came on and went off several times.

I want to access the EEC-IV diagnostic connector to try an retrieve the codes, but I can't get the damn cover off. What am I screwing up?
 



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RiverRat

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City, State
San Diego, Ca
Year, Model & Trim Level
1996 V8 Ranger 4x4
There is a little plastic tab that keeps the connector in the cover. It should "wiggle" out. If not help it by using a flat screwdriver to open up the tab.
 






Rhett

Let Them Eat Cake
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City, State
Cape Girardeau, MO
Year, Model & Trim Level
94 Sport 4x4
Sometimes the cover doesn't come off easily. The cover on my comp. diagnostic never does.

I think if we had 2nd gens our diagnostic connector would be in the cab! So much nicer...
 






Foopherenz

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City, State
Patchogue, NY
Year, Model & Trim Level
1991 2-Door
OK, I just brake the little plastic clip and yank the cover off. That worked well.

I pulled a code 66 (Mass Air Flow sensor circuit out0of-range). I cleared the code and will see if it comes back.

Thanks for the help.
 






dejello

perpetually unconcious
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College Station, TX
Also, it could just be that the connector for the MAS just came loose... Much much cheaper if it's that
 






SVO

Moderator Emeritus/Doctor
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City, State
Bastrop/Austin, Tx
Year, Model & Trim Level
Turbocharged Navajo LX
I have my old one if you need it, I'll let it go cheap since I have my Pro Flow meter in it's place.


$45???????
 






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